61 results about "Calixarene" patented technology

The invention provides a rubidium and cesium adsorbent and a preparation method and application thereof. The preparation method comprises the following steps: providing a doped and modified Prussian blue analogue, wherein the Prussian blue analogue comprises a Prussian blue matrix material and a transition metal doping element doped in the Prussian blue matrix material; granulating a mixed material containing the doped and modified prussian blue analogue and a granulating agent to obtain a rubidium and cesium adsorbent precursor; a mixed reaction system containing the rubidium and cesium adsorbent precursor and a surface modifier are subjected to a reaction, the surface modifier contains one or more functional structures of an amino group, a sulfonic group, a carboxyl group, a sulfydryl group, an acryloyloxy group, an epoxy group, a crown ether structure and a calixarene structure, and therefore the rubidium and cesium adsorbent is obtained. Through a multi-aspect synergistic strategy of transition metal doping, granulation and surface modification, the prepared rubidium and cesium adsorbent has good stability and high adsorption capacity, and has strong selectivity to Cs < + > / Rb < + >.

The invention belongs to the technical field of nano inorganic filler surface modification, and discloses modified nano calcium carbonate which is prepared by the following steps: reacting a nano calcium carbonate raw material with a compound modifier at 70-80 DEG C, and drying, crushing and grading after the reaction is completed, wherein the compound modifier is composed of a component A and a component B in a molar ratio of 1: (1.2-2.0); the component A is selected from p-sulfo calix [n] arene or salt thereof, and n is an integer from 4 to 8; and the component B is selected from epoxy group modified polyisoprene. According to the present invention, the modification formula of mixing the sulfonic acid calixarene compound and the epoxy group modified polyisoprene is used, the molar ratio of the two components is precisely regulated and controlled, and the exposure ratio of the active hydroxyl group in the system is reasonably controlled, such that the modification formula can be used for the modification of the nano calcium carbonate, the modified nano calcium carbonate can effectively improve the impact strength and thixotropy of the base coat and reduce the viscosity of the base coat, and finally, adaptive balance between the thixotropy and the processing fluidity is achieved.

The invention discloses a chiral phenol calix [4] aryl porous organic molecular cage material as well as a preparation method and application thereof. A chiral calix [4] arene raceme and an acyl chloride chiral auxiliary agent are used as initial raw materials to react to prepare a pair of diastereoisomers, gram-grade separation is achieved through silica gel column chromatography, then the chiral auxiliary agent is removed respectively, and the single enantiomer chiral phenol calix [4] arene compound with the ee value being 99.9% or above can be obtained. The preparation method comprises the following steps of: synthesizing tetraaldehyde chiral phenol calix [4] arene by introducing an aldehyde group unit on the tetraaldehyde chiral phenol calix [4] arene through Duff reaction, and assembling the tetraaldehyde chiral phenol calix [4] arene serving as a construction element with a polyamino organic synthesizer to prepare the chiral phenol calix [4] arene porous organic cage with a larger cavity. The preparation method of the chiral porous organic cage does not need a catalyst, the preparation process is simple, operation is easy and convenient, expansibility is good, the yield is high, and the prepared chiral molecular cage is large in cavity, large in specific surface area and good in repeatability and can be used for chiral recognition and gas adsorption.

The invention belongs to the technical field of pharmaceutical chemistry, radiopharmaceutical chemistry and clinical nuclear medicine, and particularly relates to a rotaxane protection-based radioactive halogen labeled compound as well as a preparation method and application thereof. A rotaxane protection-based radioactive halogen labeled compound comprises: a macrocyclic compound having a cavity, the macrocyclic compound comprising one of cyclodextrin, cucurbituril, calixarene and pillararene; a radioactive halogen-labeled compound: the radioactive halogen-labeled position is located in the cavity of the macrocyclic compound; and the end-capping group is positioned at the opening end of the cavity, is connected to two ends of the radioactive halogen-labeled compound and is used for preventing the radioactive halogen-labeled compound from sliding out of the cavity. The rotaxane protection-based radioactive halogen labeled compound provided by the invention has good in-vivo stability, and solves the problem of poor in-vivo stability caused by dissociation of radioactive halogen and a tracer agent in the existing radioactive halogen labeled compound.

A process for the hydrocyanation of an organic compound containing at least one olefinic group comprising reacting the organic compound with hydrogen cyanide in the presence of a catalyst complex comprising at least one transition metal and a phosphorus-containing ligand comprising a calixarene backbone and at least two aryl phosphite or aryl phosphoramidite groups chemically bonded to the backbone.

The invention discloses an intrinsic micropore degradable polymer material based on biomass and hetero-calixarene and a preparation method and application thereof.The method comprises the steps that firstly, cyanuric chloride and resorcinol serve as raw materials, and oxygen atom bridged hetero-calixarene macrocyclic molecules are synthesized in one step under the alkaline condition through a one-pot method; then introducing the lignin derivative into oxygen atom bridged hetero calixarene by utilizing an aromatic nucleophilic substitution reaction on a triazine ring in a macrocyclic molecule, and carrying out a condensation reaction on the obtained multi-aldehyde functionalized oxygen atom bridged hetero calixarene and polyfunctional mercaptan under an acidic condition to obtain the target degradable polymer material. When in use, the material is directly put into an aqueous solution of elemental iodine, iodine negative ions and divalent mercury ions for adsorption. The removal rate of the material to low-concentration iodine simple substances, iodine negative ions and divalent mercury ions can reach 90% or above, and the material after adsorption can be repeatedly used after being washed by an acidic aqueous solution. The material can be degraded under an alkaline condition.

This application relates to a polyimide film, its preparation method, and its application, falling within the field of polymer film preparation technology. The preparation method includes: dissolving calix[n]aromatics, monoacyl chloride monomers, and diacyl chloride monomers in an organic solvent at a specific molar ratio to form a hyperbranched structure; adding a diamine monomer to generate an amino-terminated hyperbranched structure; then adding a dianhydride monomer and a diacyl chloride monomer to obtain a polyamic acid solution; and finally, chemical imidization and film-forming treatment to obtain a polyimide film. This application effectively solves the problem that existing polyimide films struggle to simultaneously possess excellent bending resistance and creep resistance, significantly improving the film's applicability in the field of flexible displays.

The invention relates to the technical field of high-performance textile composite materials, in particular to a novel anti-wear curtain fabric and a preparation method thereof. The preparation method comprises the following steps: carrying out surface modification on nano aluminum oxide by virtue of a biomimetic mineralization technology, and constructing an organic-inorganic hybrid layer on the surface of nano particles by virtue of a dopamine-alginic acid composite system; adopting a supramolecular assembly technology to enable calixarene derivatives and cyanate ester resin to form a host-guest compound system; a silicon carbide fiber reinforced composite material base material is prepared through innovative processes such as photo-thermal dual curing and electric field assisted hot-pressing curing; and finally, constructing a gradient ceramic protection system on the surface of the base material by adopting surface treatment technologies such as a laser micro-texturing technology, a magnetron sputtering and plasma spraying composite technology, plasma enhanced chemical vapor deposition and the like. The prepared curtain fabric has the advantages of wear resistance, flame retardance and the like, and the technical problems that a traditional curtain fabric is poor in wear resistance, insufficient in flame retardance and short in service life are solved.

This invention provides a macrocyclic compound and its applications, a precursor for a processing-free thermal image containing the macrocyclic compound, and a processing-free thermal image and its applications. The macrocyclic compound is a product obtained by amine esterification of resorcinol calixarenes (CR) and isocyanate acrylate (ICA). Because the macrocyclic compound contains calixarenes, its macrocyclic cavity can encapsulate infrared absorbers and thermal initiators. Furthermore, the macrocyclic compound contains highly polar amine-activated double bonds, exhibiting high thermosensitive crosslinking activity, and can undergo crosslinking reactions with other components in the imaging layer to form a three-dimensional crosslinked structure, thereby solving the surface migration problem of infrared absorbers and thermal initiators in the imaging layer. In addition, the macrocyclic compound contains highly polar telechelic amine-activated allyl groups, exhibiting high thermosensitive crosslinking activity and abrasion resistance, effectively improving the imaging performance of the processing-free thermal image.

This application relates to the field of polishing slurry technology, and in particular to cerium oxide polishing slurry, its preparation method and application. The cerium oxide polishing slurry includes a solvent and a solute. The solvent includes water, and the solute includes cerium oxide, 4-sulfonylcalix[6]arene, sodium 2,3-dihydroxynaphthalene-6-sulfonate, a lubricant, a zwitterionic dispersant and a pH adjuster. In the cerium oxide polishing slurry, the mass percentage of cerium oxide is 4.0%~13.0%, the mass percentage of 4-sulfonylcalix[6]arene is 0.3%~1.3%, the mass percentage of sodium 2,3-dihydroxynaphthalene-6-sulfonate is 0.1%~1.0%, the mass percentage of lubricant is 0.1%~0.55%, and the mass percentage of zwitterionic dispersant is 0.3%~1.3%. The pH value of the cerium oxide polishing slurry is 3.8~4.2. Using the cerium oxide polishing slurry provided in this application reduces the formation of Ce-Si-O that is difficult to clean during the polishing process and improves the cleaning yield and stability after polishing.

A calix[4]arenes of the formula (1a),wherein: Y1, Y2, Y3 and Y4 are selected from hydrogen, halogen, NO2, N3, CN, CHO, COOR′, CONR″2, NR2, triazole moiety and C1-C3-alkyl group, the C1-C3-alkyl group being optionally substituted, Z is a heterocyclic moiety which is selected from the group including of imidazole, benzimidazole, benzothiazole, benzoxazole, purine, tetrazine, oxazole, pyrazole and thiazole, the heterocyclic moiety being optionally substituted, R1 and R2 are selected from hydrogen and C1-C8-alkyl, the C1-C8-alkyl group being optionally substituted, n being an integer between 1 and 4, They exhibit high cytotoxicity against cancer cells.

The invention provides amphiphilic resorcinol calixarene based on guanidino carbonyl pyrrole functionalization and a nano particle containing the amphiphilic resorcinol calixarene. Firstly, nanoparticles are constructed on the basis of amphiphilic resorcinol calixarene, then antibiotic norfloxacin is entrapped in the nanoparticles, and binary nanoparticles with a synergistic antibacterial effect are prepared and are used for efficient antibiosis. The nanoparticles show excellent synergistic antibacterial effect and biocompatibility under the condition that the concentration is far lower than the minimum inhibitory concentration of subjects and guests, and the problem of drug resistance of bacteria is avoided to the greatest extent due to the use of low-dose antibiotics.

The invention relates to a calixarene filler-based composite gel electrolyte and an in-situ preparation method thereof. The in-situ preparation method comprises the following steps: S1, carrying out carbamic acid esterification addition reaction on PEO and IEM under the action of a catalyst to obtain PEO-IEM; and S2, mixing the PEO-IEM, acrylate, calixarene and the electrolyte, adding an initiator to initiate a free radical polymerization cross-linking reaction between the PEO-IEM and the acrylate, and forming a three-dimensional cross-linked network wrapping the electrolyte and calixarene to obtain the calixarene filler-based composite gel electrolyte. The lithium ion transference number and the ionic conductivity of the composite gel electrolyte can be remarkably improved, so that the electrolyte can still keep excellent long-term cycling stability under a high-load battery system, and a reliable electrolyte solution is provided for industrialization of high-safety and high-energy-density lithium metal batteries.

The application discloses a kind of polyethylene glycol cupped aromatic compounds and its preparation method and application, the polyethylene glycol cupped aromatic compound is connected by diazotization reaction by skeleton molecule and the diamino benzoic acid with metaposition protection, and then by upper end free carboxyl modification hydrophilic polyethylene glycol molecule to construct amphiphilic molecule;The compound can prepare nanomicelle assembly by film dispersion method, and simultaneously in macrocyclic cavity, anti-inflammatory drug can be loaded by host-guest interaction;The compound can realize drug release and nitric oxide absorption in anoxic environment, as a kind of cupped aromatic nanodrug system, in drug loading and nitric oxide absorption synergistic treatment anoxic related inflammation has important application value.

This invention relates to the field of building materials and concrete admixtures, and particularly to a hydration temperature rise inhibitor, its preparation method, and its application. The hydration temperature rise inhibitor of this invention employs a host-guest supramolecular assembly strategy, using calixarene as the host and polyhydroxy compounds as the guest, constructing a capsule-like composite structure through hydrogen bonding. During cement hydration, calixarene is first adsorbed onto the surface of cement particles, delaying the nucleation and growth stages of cement hydration through interfacial adsorption. Subsequently, the calixarene gradually dissolves and continuously releases polyhydroxy compounds, allowing them to enter the aqueous phase. The released polyhydroxy compounds further effectively inhibit the interfacial reaction process of cement hydration, thereby slowing down the hydration heat release rate, reducing the hydration temperature peak, and achieving regulation of the early hydration temperature rise of cement. The hydration temperature rise inhibitor has wide applicability, significantly reducing the risk of concrete cracking caused by temperature drop shrinkage, and effectively improving the durability and long-term safety of engineering structures.

This invention discloses an OC transparent composition for CF substrates that combines low hygroscopicity and low dielectric constant, comprising the following raw materials in weight percentages: 1-5% hyperbranched oligomer, 1-5% modified polybutadiene oligomer, 0.01-3% fluorinated modified calixarene oligomer, 1-14% reactive diluent containing four to eight polymerizable functional groups, 1-10% acrylic resin, 0.01-5% epoxy resin, 0.2-0.5% leveling agent, 0.1-5% silane coupling agent, 0.1-5% curing accelerator, 0.01-0.2% polymerization inhibitor, 0.01-0.2% antioxidant, and 70-90% electronic grade organic solvent. This invention not only maintains the main properties of the OC coating for transparent protective composition of CF substrate, such as high hardness, high thermal stability, high planarization ability, and high barrier properties, but also gives the OC coating excellent low moisture absorption and low dielectric constant, which greatly reduces energy consumption in the flat panel display cell assembly process and broadens the application range of OC materials in large-size, high-speed, high-frequency LCD displays.

The present application relates to the technical field of membrane separation, and particularly relates to a composite membrane based on deep cavity calixarene and a preparation method and application thereof.The composite membrane based on deep cavity calixarene provided by the present application uses deep cavity calixarene as a water-phase monomer to construct a nanofiltration composite membrane for antibiotic desalination, and has the following advantages: large molecular size, which can reduce the diffusion speed of monomers to the interface and increase the controllability of the interfacial polymerization process; rich in low-reactivity alcohol hydroxyl groups, which can reduce the interfacial polymerization rate and thus better regulate the polymerization degree; a more twisted molecular structure and strong non-coplanarity of the molecule, which can improve the free volume of the separation layer and increase the looseness of the separation layer structure; and the ability to recognize drugs and the supramolecular cavity structure are more conducive to the improvement of selectivity and flux in the antibiotic desalination process.Test results show that the composite membrane provided by the present application has excellent desalination performance for antibiotics and excellent stability.

The invention discloses a leaching-resistant immersed photoresist and a preparation method thereof, and the preparation method comprises the following steps: combining a photoacid agent with calixarene or a derivative thereof to form a functional supramolecule, the calixarene or the derivative thereof at least has a fluorine-containing side chain and a hydroxyl group; performing esterification reaction on the functional supramolecule and methacrylic acid or a derivative thereof to obtain a polymer monomer; and finally, carrying out free radical polymerization reaction on the polymer monomers to obtain macromolecular resin, namely the anti-leaching immersed photoresist. The preparation process provided by the invention is simple, low in synthesis difficulty, low in production cost and easy to industrialize, the obtained anti-leaching immersed photoresist is good in leaching effect, swelling caused by infiltration of component solvents such as moisture in immersion liquid into colloid can be effectively prevented, pattern denaturation is avoided, the anti-leaching immersed photoresist also has very good anti-etching capability, and when the immersed photoresist is used, the anti-leaching effect of the anti-leaching immersed photoresist is greatly improved. A top coating is not needed, and the service life of the lens is prolonged.

The application belongs to the technical field of photovoltaic cell materials, and particularly relates to a porous supramolecular assembly modified perovskite film, a preparation method thereof and a photovoltaic cell. The application provides a preparation method of a porous supramolecular assembly modified perovskite film. In the perovskite precursor solution, 4-sulfonate calix[4]arene supramolecules are introduced, a wet film is formed after spin coating, and in-situ host-guest self-assembly occurs with an anti-solvent containing 1-amine ethyl-3-methyl imidazole bromide in the post-processing annealing stage, so that the porous supramolecular assembly is in-situ crosslinked and uniformly distributed at perovskite grain boundaries. The formed supramolecular assembly has a cyclic sequence cavity structure, can be used as a perovskite crystallization template to effectively improve perovskite crystallization nucleation, improve perovskite film crystallization, and thus improve the perovskite film quality, and solve the technical problems of perovskite film efficiency bottleneck and low stability.

The invention belongs to the technical field of anion exchange membranes, and discloses a calix [4] arene-based microporous polyaryl piperidine anion exchange membrane as well as a preparation method and application thereof. Regulating and controlling the topological structure of the main chain of the polymer by regulating the feeding proportion of the rigid calix [4] arene monomer and the p-terphenyl monomer in the main chain; and carrying out quaternization reaction on the obtained polymer to obtain a functionalized microporous polymer, and finally, casting a solution to form the membrane. According to the invention, a three-dimensional annular calix [4] arene structure is introduced into a polymer main chain, a flexible side chain is guided to be self-assembled along a non-coplanar direction by utilizing an easily-modified site at the edge of the upper part of the polymer main chain, and mutually-communicated ion micropore nano-channels are constructed in the membrane, so that the transmission efficiency of hydroxyl ions is remarkably improved. Meanwhile, the rigid calix [4] arene skeleton forms a three-dimensional branched network in the polymer, so that the mechanical strength and the dimensional stability of the membrane are effectively enhanced, and swelling of the membrane is inhibited.

The invention discloses a calixarene derivative and a preparation method and application thereof, the structure of the calixarene derivative is as shown in formula I: R1 is CO2-NH4 < + >; r2 is any one of straight-chain alkyl, branched-chain alkyl, straight-chain alkyl containing double bonds and branched-chain alkyl containing double bonds. According to the invention, iodobalix [4] arene and an alkynyl-containing phenyl compound are connected through a Sonogashira coupling reaction to construct an extended aromatic macrocyclic skeleton, and then an ionic water-soluble structure is obtained through upper edge ester group hydrolysis. The calixarene derivative has the following innovative advantages that the depth and the volume of a cavity are remarkably increased, and large-volume guest molecules can be efficiently included; the extended cavity realizes effective inclusion of guest molecules through hydrophobic interaction and Van der Waals force; an upper edge carboxylate radical ion group specifically recognizes a cationic object through electrostatic interaction, so that the multi-site recognition function of enzyme is simulated; the water solubility is enhanced, and the method is suitable for the biological medicine fields of drug delivery, ion sensing and the like.

The present disclosure provides a high refractive index calixarene derivative photoresist and a preparation method and application thereof. The photoresist comprises a solvent and a main component, which is a calixarene derivative molecule containing a diazonaphthoquinone group and a sulfide structure. The photoresist of the present disclosure has the characteristics of high resolution, high refractive index and high corrosion resistance, and is suitable for use in immersion lithography technology.

The invention discloses a degradable cross-linked polymer material for efficiently capturing iodine as well as a preparation method and application of the degradable cross-linked polymer material. The polymer material is a three-dimensional network polymer, namely the target polymer material disclosed by the invention, which is formed by carrying out condensation polymerization on a multi-aldehyde-group functionalized reaction monomer prepared by reacting an aldehyde-group-containing phenolic biomass raw material from lignin and cyanuric chloride through a one-pot method and polyfunctional mercaptan under an acidic condition. The material does not contain miscellaneous calixarene macrocycles, and the synthetic route is simple. Multiple heteroatom sites of nitrogen, oxygen, sulfur and the like in a polymer network have specific high affinity to iodine steam and triiodide anions, the adsorption capacity to the iodine steam can be more than three times of the mass of the material, and the removal rate to low-concentration triiodide anions in water exceeds 90%. The raw materials are renewable, the process is simple and convenient, and the adsorbent has the characteristics of efficient adsorption, easiness in recovery and degradability, and is suitable for deep purification of radioactive and industrial iodine-containing waste gas and wastewater.

The invention discloses a calixarene self-assembled composite membrane for gas separation and a preparation method of the calixarene self-assembled composite membrane, a selective separation layer is constructed by utilizing the self-assembly characteristic of SCA8 molecules, a cavity structure of the selective separation layer has a screening effect on H2 and CO2, and meanwhile, the diffusion rate of CO2 is remarkably reduced and the separation selectivity is improved due to the strong interaction of phenolic hydroxyl and sulfonic acid group CO2; the preparation process is carried out at normal temperature and normal pressure, complex equipment or high-temperature treatment is not needed, and the process is simple and safe. According to the calixarene self-assembled composite membrane for gas separation and the preparation method of the calixarene self-assembled composite membrane, the obtained composite membrane shows excellent separation performance, the H2 permeability can reach 471.4 GPU under the optimal condition, the H2 / CO2 separation selectivity reaches up to 11.14, and the Robeson upper limit of a traditional polymer membrane is broken through; the membrane shows good stability in a continuous test as long as 250 hours and has industrial application potential, water is used as a main solvent in the preparation process, the dosage of an organic solvent is small, and the membrane is environmentally friendly and low in cost.

To provide a photoelectric conversion element with superior photoelectric conversion efficiency. [Solution] A photoelectric conversion element having a first electrode, a second electrode, and a photoelectric conversion layer containing a perovskite crystal disposed between the first electrode and the second electrode, wherein a charge transport layer is provided between the photoelectric conversion layer and the first electrode, and the charge transport layer contains a cyclic conjugated compound formed by the conjugation bonding of a plurality of pyrrole rings and a calixarene compound, and the charge transport layer contains a compound that improves the current density, or the photoelectric conversion element has a surface modification layer between the charge transport layer and the first electrode.

This invention discloses a functionalized MXene-based waterborne fire-retardant coating, its preparation method, and its application, belonging to the field of fire-retardant coating technology. This invention combines the advantages of functionalized MXene materials, such as high dispersibility, high temperature resistance, and excellent flame-retardant properties, using waterborne polyurethane as the resin matrix, ammonium citrate as the acid source, and MXene materials as nanostructured flame retardants to develop an environmentally friendly, high-performance reinforced waterborne fire-retardant coating. The MXene materials can be obtained through chemical modification with different functional groups (such as silane coupling agents, calixarenes, and MOFs) to introduce polar groups onto the surface. The fire-retardant coating prepared using functionalized MXene materials achieves UL-94 V-0 flame retardancy through a dual mechanism of physical barrier and "catalytic char formation," while also possessing high mechanical strength and thermal stability, making it suitable for protecting substrates such as metals and wood.

The present application relates to a method for extracting konjac glucomannan, and belongs to the technical field of natural high-molecular polysaccharide extraction. In view of the problems of low efficiency, limited purity and easy oxidative degradation in the extraction process of konjac glucomannan in the prior art, an improved extraction method is provided. The key points of the method are as follows: konjac powder is mixed with a special dissociation agent solution at a mass ratio of 1:10, and the reaction is carried out at 50 DEG C for 40 minutes, the dissociation agent is composed of epigallocatechin gallate with a concentration of 2g / L, sulfonated calix[6]arene with a concentration of 1g / L and water; after the reaction is completed, the pH of the system is adjusted to 4.5-5, and then the centrifugal separation, purification and drying steps are carried out, and finally the glucomannan is obtained. The method utilizes the synergistic effect of epigallocatechin gallate and sulfonated calix[6]arene, effectively destroys the structure of the raw material, removes impurities and inhibits oxidation, significantly improves the extraction efficiency and product purity of konjac glucomannan.

The present invention relates to a calixarene-based ligand, a cobalt catalyst comprising such ligand and its use in hydroformylation processes. The Applicant surprisingly found that the calixarene compound is suitable for forming cobalt catalysts, which have good solubility, catalytic performance, recovery performance, and reuse performance.

The invention discloses a nuclear radiation protection material as well as a preparation method and application thereof, and the preparation method comprises the following steps: carrying out chelation reaction on high-atomic-number metal ions and an organic macrocyclic ligand to form a metal-macrocyclic chelation functional element; a functional element is grafted to a polymer main chain containing an active group through a covalent reaction, and organic macrocyclic ligands comprise aza macrocyclic ligands, crown ether ligands, porphyrin ligands and calixarene ligands; the high-atomic-number metal ions comprise lanthanide metal ions, actinide metal ions, lead ions, bismuth ions and tungsten ions; the polymer comprises at least one of polyacrylate, polyurethane, polyolefin, polyamide, epoxy resin and polysiloxane; in this way, the material has high mechanical performance and nuclear radiation shielding performance, and the problems existing in the prior art are effectively solved.

Compounds of general Formula (I)wherein the elements A, L, R1 and R2 have a defined meaning, and their medical and non-medical use. The compounds may be used treatment of a subject in need of any one or more of anti-inflammatory, anti-oxidative, anti-ageing, or lipid metabolism modulation therapy or prophylaxis. The compounds may also be used as food or feed products, dietary supplements or cosmetic preparations.