349 results about "Supramolecular polymers" patented technology

A polymer comprising monomeric units linked via 4 H-bridges and bound within said polymer via a different bond. The bond via the H-bridges is much stronger than with known supramolecular polymers.

The invention discloses a preparation method for a multi-hole carbon nitride photocatalytic material doped with sulphur, belonging to the technical field of synthesis of photocatalytic materials. The preparation method comprises the following steps of preparing a super-molecule polymer through simple hydro-thermal treatment by taking melamine and trithiocyanuric acid as a raw material and taking water as a solvent, and burning in an inert atmosphere so as to obtain a three-dimensional network sulphur-doped multi-hole carbon nitride photocatalytic material. The preparation method provided by the invention has the advantages that simplicity and easiness in preparation are achieved, a method for burning a super-molecule polymer is adopted, any template agent and a surface active agent do not need to be added, a reaction system is simplified, the cost is low, the pollution of a reagent is slight, the reaction repeatability is good, a preparation condition is mild, the time consumption of a synthetic process is short, and the requirement on equipment is high; the multi-hole carbon nitride photocatalytic material doped with sulphur has excellent catalytic activity in a catalyzing hydrogen production reaction, and the hydrogen production rate of the material is 8.3 times and 5.2times that of a product obtained by burning melamine and trithiocyanuric acid under the same condition.

Systems and methods for identifying modulators of cell-mediated polymer assembly are provided. One aspect provides a high throughput method for identifying modulators of supramolecular polymer assembly.

The present invention relates to a supramolecular polymer comprising quadruple hydrogen bonding units within the polymer backbone, wherein at least a monomer comprising a 4H-unit is incorporated in the polymer backbone via at least two reactive groups up to four reactive groups, provided that the 4H-units are not covalently incorporated in the polymer backbone through one or more silicon-carbon bonds. The invention also relates to processes for preparing such supramolecular polymers and their use in personal care applications, surface coatings, imaging technologies, biomedical applications, (thermo)reversible coatings, adhesive and sealing compositions and as thickening agents, gelling agents and binders.

The present invention includes a two-layer imageable element, including: a substrate, a top layer including a first thermally imageable composition including (a) a first thermally sensitive supramolecular polymer or (b) a thermally imageable composition free of the first thermally sensitive supramolecular polymer; and disposed between the substrate and the top layer, a bottom layer including a second thermally imageable composition, which includes a second thermally sensitive supramolecular polymer. The present invention also includes a method of producing the imaged element.

The present invention relates to a cosmetic composition and method for making up and / or enhancing the appearance of a keratinous substrate, comprising at least one supramolecular polymer, at least one detackifying ingredient which is a hyperbranched functional polymer, at least one fatty phase ingredient(s) and at least one polyethylene wax. The compositions of the present invention may optionally contain at least one colorant.

The present invention relates to a supramolecular polymer composition and to a method of manufacturing such a composition in particular for use in making cables. The supramolecular polymer composition of the invention comprises: a first polymer chain on which at least one first functional group is grafted; and a second polymer chain on which at least one second functional group is grafted; the first and second functional groups being associated with each other by at least one intermolecular bond of the hydrogen type.

The invention designs and synthetizes a supermolecule polymer framework material. The supermolecule polymer framework material is formed through self assembly in cyclohexanol by using naphthalimide functionalized pillar [5] arene as a subject and bilateral quaternization pillar [5] arene as an object, wherein the mole ratio of the subject to the object is 1:1. Through competitive coordination mechanism, the supermolecule polymer framework material (SOF-AP5-MJP5) and a metal supermolecule polymer framework material (M-SOF-AP5-MJP5) can respectively realize continuous response and high-sensitivity detection to Fe<3+> and H2PO4<->; the recognition performance has important application values in the field of ion recognition.

A supramolecular polymer and its composite with carbon nanotubes, CNTs, are described. The supramolecular polymer is an ensemble of precursors that independently contain “sticky feet” for non-covalent binding to carbon nanotube surfaces and associative groups. There is at least one of the associative groups covalently bound to each of the precursor and there is at least one covalently connecting moiety connecting associative groups within a precursor or connecting an associative group to a linker to a “sticky foot” in a precursor. When the associative groups are in a dissociative state, the supramolecular polymer precursors and CNTs can be combined to form a dispersion. Upon promotion, the dissociated associative groups in the dispersion can associate to yield a CNT / supramolecular polymer composite.

The invention provides a seven-membered cucurbituril-rare earth metal linear tubular supramolecular polymer and a synthetic method. When cadmium chloride exists, the seven-membered cucurbituril-rare earth metal linear tubular supramolecular polymer is formed by seven-membered cucurbituril (Cucurbit [7] uril and Q [7]) and rare-earth metal salt (Ln (NO3)3 or LnCI3) in 6M hydrochloric acid solution. According to the seven-membered cucurbituril, dosing mole ratio of the rare-earth metal salt to the cadmium chloride ranges from 1:6 to 8:2-8, and mixture of the rare-earth metal salt and the cadmium chloride are heated and mixed evenly and stand for several days under normal temperature to form a target compound. The method has the advantages of being simple in the synthetic method, easy and simple to operate, high in productivity (between 60% and 80%), short in period and the like. Compared to pure seven-membered cucurbituril, the seven-membered cucurbituril-rare earth metal linear tubularsupramolecular polymer synthetized by the method has strong adsorption to methyl alcohol, ethanol and acetone.

The invention relates to a supramolecular polymer based on lipoic acid or / and derivatives thereof and a preparation method thereof. The supramolecular polymer is mainly obtained by hot melting and mixing of the lipoic acid or / and derivatives thereof, a crosslinking agent and an iron source. The molar ratio of the lipoic acid or / and the derivatives thereof to the crosslinking agent to the iron source is 2:(0.1-1.5):(0.01-1); the lipoic acid or / and the derivatives thereof are selected from one of or a mixture of two or more compounds shown in formula I; and the crosslinking agent is a hydrocarbon compound containing carbon-carbon unsaturated bonds, and the iron source consists of an iron salt and an organic solvent capable of dissolving the iron salt. The supramolecular polymer provided bythe invention has the stretchability of more than 150 times and can repair itself at room temperature in an ultra-fast manner. In formula I (as described in the specification), R1 is hydrogen or C1-C4linear or branched alkyl, R2 is hydrogen or carboxyl, and n is an integer of 1-5.

The invention discloses a calixarene constructed supramolecular polymer material. The chemical formula of a repeat unit of the material is C210H206N72O64S8; and the material consists of ethyl-bridged p-sulfonated calix[4]arene, cucurbit[8]uril and hexyl-bridged methyl viologen, wherein the ethyl-bridged p-sulfonated calix[4]arene and the cucurbit[8]uril serve as a large-ring host, the hexyl-bridged methyl viologen serves as a guest, and the supramolecular polymer with a host-guest inclusion structure is constructed through host-guest bonding. The invention has the advantages that: by the recognition advantage of the p-sulfonated calix[4]arene and the cucurbit[8]uril on specific groups of the viologen, a fibrous polymer material is prepared by a simple and feasible solution mixing method, and the method is easy to implement, high in yield, convenient and effective; and by a chemical reduction means of adding hydrazine hydrate, the polymer material can be well reduced and depolymerized,and the supramolecular polymer material has wide application prospect in the field of materials.

The invention relates to a process for the preparation of a supramolecular polymer comprising 1-50 4H-units, in which a 4H building block is reacted with a prepolymer, wherein a 4H building block comprises a 4H-unit and a reactive group according to Formula (I):wherein 4H represents a 4H-unit, L represents a divalent, trivalent, tetravalent or pentavalent linking group, Fi represents a reactive group, and r is 1-4, is reacted with a pre-polymer comprising a complementary reactive group, wherein the reaction mixture comprising said 4H building block and said polymer comprises less than 10 wt. % of a non-reactive organic solvent, based on the total weight of the reaction mixture.

The invention designs and synthesizes a supramolecular polymer P5S.G assembled by a main body and an objective body based on double-column [5] arene. The supramolecular polymer is formed by assemblingand complexing aldehyde group functionalized double-column [5] arene (P5S) as the main body and 4,4'-bipyridinium derivative (G) as the objective body in cyclohexanol. The supramolecular polymer canbe acted with an organic dyestuff rhodamine B in water so as to realize high-efficiency adsorption on the organic dyestuff rhodamine B. After detection, the removal rate of the rhodamine B in the water solution through the supramolecular polymer P5S.G can reach 90 percent or more, so that the supramolecular polymer P5S.G can be used for treating waste water containing the rhodamine B.

The invention discloses supramolecular polymer clean fracturing fluid resistant to high temperature of 170 DEG C. The fracturing fluid is prepared from the following components in percentage by weight: 0.2 to 0.5 percent of thickening agent for the clean fracturing fluid, 0.1 to 0.5 percent of viscosity synergist, 0.2 to 0.4 percent of structural intensifier, 0.05 to 0.2 percent of deoxidant, 0.1 to 0.3 percent of metal ion chelating agent, 1 to 2 percent of clay stabilizer and the balance of fresh water. According to the clean fracturing fluid, a reversible supramolecular network structure is formed through the intermolecular interaction, and the thickening agent is low in use concentration and can be used for effectively controlling the viscosity of a base solution of the fracturing fluid and improving the pumping performance of the fluid; viscoelastic sand-carrying of the fracturing fluid is realized by low viscosity and high viscoelasticity; the temperature resistance can reach 170 DEG C under a long-term shear condition; the shear resistance is excellent, and the fluid viscosity and the structure after high shear can be effectively recovered; the construction friction is low, and the equipment load and the fracturing construction risk are reduced; the residue content is low, so that the damages to a reservoir stratum and prop fractures are greatly reduced, and the fracturing stimulation effect is greatly improved.

Fluorinated supramolecular polymers containing at least 5% by weight of covalently bonded fluorine atoms, based on total weight of the polymers are disclosed. The polymers comprise a fluorinated polymer chain and a (self-)complementary unit capable of forming at least three hydrogen bonds being covalently bonded to the fluorinated polymer chain. Also disclosed are materials comprising (a) a fluorinated supramolecular polymer and (b) a non-fluorinated polymer and / or (c) a fluorinated compound, the non-fluorinated polymer being a polymer containing less than 5% by weight of covalently bonded fluorine atoms, based on the total weight of the non-fluorinated polymer, and the fluorinated compound being either a low molecular weight fluorinated compound comprising at least one fluorine atom and having a molecular weight of 34 to 600 amu, or a fluoropolymer containing at least 5% by weight of covalently bonded fluorine atoms and a Mn from about 600 to about 5000.

A polymer having the following general formula: where, PU is a polymer chain comprising at least one polyurethane chain; n ranges from 0 to 8; and X, Y and Z, identical or different, are H-bonding sites. Also provided is a supramolecular polymer comprising units that form H-bonds with one another, wherein at least one of these units is a polymer according to the invention. The supramolecular polymer is useful as a hot melt adhesive, in rotational or slush molding, in injection molding, and in the manufacture of thermoplastic polyurethane foams. Further provided is a process for the preparation of the polymer on bench and commercial scales.

The invention belongs to the fields of supramolecular polymer polymer chemistry and drop formation control, and particularly relates to supramolecular hydrogel microsphere modified with cyclodextrin water-solubility polymer and adamantine water-solubility polymer and formed by assembling subjective and objective bodies in a liquid drop, and a preparation method and application thereof. The first purpose of the invention is to provide novel supramolecular hydrogel microsphere formed by assembling subjective and objective bodies and a preparation method thereof method, the second purpose of the invention is to adopt liquid drop as a template to realize supramolecular assembly and achieve uniform particle size and controllable dimension of the supramolecular hydrogel microsphere, and the third purpose of the invention is to provide application of the type of supramolecular hydrogel microsphere in adriacin doxorubicin and taxol water-solubility antitumor drug sustained release, so as to achieve the purpose that a drug can keep a high concentration level for a long time.

The invention provides a 3D printing material capable of being repeatedly used and a preparation method thereof. The 3D printing material is prepared from a supramolecular polymer matrix, an organic filler, an inorganic filler, a plasticizer, and a pigment. The preparation method comprises following steps: synthesis of matrix resin, mixing, extrusion, and cooling. Supermolecule polymer matrix is prepared based on a quadruple hydrogen bond effect, different polymers are taken as middle chain segments, different preparation methods are chosen, the inorganic and organic fillers are added, a series of polymer materials with different melting temperatures and mechanical properties is synthesized, and the design can be performed based on different requirements. The obtained material can be melted, extruded, and moulded at a low temperature (35 DEG C), and can be used to prepare a model containing a heat sensitive substance; after printing, the model can be directly washed, melted, and drawn;the waste of raw materials is avoided effectively, the using cost is saved, and the economic benefit is increased.

The present invention relates to a cosmetic composition and method for making up and / or enhancing the appearance of a keratinous substrate, comprising at least one supramolecular polymer, at least one detackifying ingredient which is a hyperbranched functional polymer, at least one fatty phase ingredient(s), at least one light silicone fluid other than the fatty phase ingredient(s), at least one copolymer containing a silicone resin segment and a fluid silicone segment and at least one functional filler. The compositions of the present invention may optionally contain at least one wax and at least one colorant.

The invention relates to a designed synthesized gel factor capable of recognizing an aromatic acid isomer. Acetonitrile is taken as a solvent and brominated column [5] aromatic hydrocarbon and a naphthalimide derivative are taken as a substrate to carry out reflux, after the reaction is over, the reaction system is cooled to the room temperature, the solvent is steamed, and petroleum ether and ethyl acetate are used for elution to obtain a yellow solid product which is the gel factor BP5. The gel factor BP5 can form supramolecular polymer gel BP5G in cyclohexanol through a pi-pi effect. The supramolecular gel BP5G allows color comparison and fluorescent recognition and separation of aromatic acid isomer molecules to be achieved through competitive coordination of hydrogen bonds. Multifunction application including recognition and separation of the aromatic acid isomer is achieved, and the gel factor has great significance in the fields of bioscience and environmental detection.

The invention discloses a super molecular gel based on column based on pillar [5] arene host-guest assembly. The super molecular gel is characterized in that naphthalimide functionalized pillar [5] arene is taken as a host; a tripod pyridyl amide derivative is taken as a guest; a stable super molecule gel with a yellow aggregation-induced fluorescence is self-assembled in a DMSO / H2O system; when aseries of cation water solutions are added into SP5-OG, the fluorescence of the super molecular gel SP5-OG can be quenched by adding Fe<3+>, and the fluorescence of the super molecular gel SP5-OG keeps unchanged when adding other cations, so that the SP5-OG is specialized for detecting the Fe<3+>. Meanwhile, a detection line is 8.95*10<-10>M, indicating that the SP5-OG can realize super sensitivity detection on the Fe<3+>. Moreover, the dry gel powder of the super molecular polymer gel SP5-OG can adsorb Fe<3+>from the water solution well, and the adsorption rate is 99.8 percent.

The invention discloses a molecular cluster material of supramolecular polymer and a preparation method and application of the molecular cluster material. The preparation method includes the steps of firstly, preparing polystyrene microspheres; secondly, using polystyrene microspheres as the substrates, and grafting active groups containing a large amount of carboxyl or sulfonic group to the surfaces of the polystyrene microspheres so as to synthesize the molecular cluster material. The preparation method has the advantages that the method is simple, low in cost, low in energy consumption, environmentally friendly and free of pollution; the prepared molecular cluster material is efficient, stable, large in descaling amount, high in oxidation resistance, high in mechanical strength, easy in large-scale production and applicable to water scale removing of drinking water. The molecular cluster material has the advantages that crystal chemistry and hydromechanics are powerfully combined, and the molecular cluster material mainly uses physical descaling and is stable in descaling performance and capable of achieving automatic regeneration; the molecular cluster material is large in treatment capacity and wide in application range, and the effect of the molecular cluster material is more than 3 times of that of descaling using softened resin; the molecular cluster material is high in discharge water quality, and raw water hardness after treatment can reach an international standard.

The present invention relates to a cosmetic composition and method for making up and / or enhancing the appearance of a keratinous substrate, comprising at least one supramolecular polymer, at least one detackifying ingredient which is a hyperbranched functional polymer and at least one fatty phase ingredient(s). The compositions of the present invention may optionally contain at least one wax and at least one colorant.

A polymeric composition and method of preparation for application in sub-micron lithography, comprising a blend of A-B and B′-C block, random, branched, or graft copolymers, where: (i) the B and B′ blocks or grafts have attractive supramolecular interactions characterized by a negative Flory-Huggins parameter; (ii) the composition exhibits a microphase-separated, three-domain morphology with A, C, and B / B′ domains comprised largely of A blocks or grafts, C blocks or grafts, and a mixture of B and B′ blocks or grafts, respectively. Long-range ordering of nanometer-scale domain features has been achieved in thin films of such supramolecular polymer blends, while avoiding macrophase separation. The strategy offers a diversity of morphologies for sub-micron lithographic applications in tandem with ease of chemical synthesis.

The invention provides a pillararene-based supramolecular polymer photoelectric material, a preparation method therefor and an application of the supramolecular polymer photoelectric material. The supramolecular polymer photoelectric material contains a unit A1, a unit A2, a functional group B and a functional group C, wherein the functional groups (B and C) are separately connected with the A1 and the A2; and the units (A1 and A2) are conjugate unit containing oligomers or conjugate unit containing micromolecular ingredients, the functional group B is pillararene, the functional group C is neutral alkylimidazole, and the functional group B and the functional group C are connected through interaction between a plurality of C-H...O(N) hydrogen bonds and C-H...[PI]. Through introducing a novel macrocyclic supramolecular main body material, i.e., a pillararene structural unit, the condition selectivity of forming of a supramolecular polymer is lowered. Through introducing different functionalized oligomers, the application of the supramolecular polymer photoelectric material is extended.

The invention provides a self-assembled super-molecular polymer nano-filtration membrane based on graphene and a preparation method thereof. The specific method comprises: taking a polyacrylonitrile super-filtration membrane or a sulfonated polyethersulfone super-filtration membrane which are subjected to alkali modification treatment as a base membrane and fixing the base membrane into a container with a porous supporting layer; putting a membrane surface upward; adding a covalent cationic polyelectrolyte solution and a super-molecular polymer solution into the container respectively; pressurizing and assembling; sufficiently washing with de-ionized water and repeating for a plurality of times; putting the membrane into a drying oven for carrying out heat treatment to obtain a multilayered super-molecular polymer nano-filtration membrane; finally, immersing the multilayered super-molecular polymer nano-filtration membrane into a graphene oxide solution; pressurizing and assembling; sufficiently washing with de-ionized water; putting the multilayered super-molecular polymer nano-filtration membrane into the drying oven for carrying out heat treatment to obtain the self-assembled super-molecular polymer nano-filtration membrane based on the graphene. The nano-filtration membrane prepared by the preparation method provided by the invention contains a super-molecular polymer so that the controllability of the nano-filtration membrane is improved and the separation effect is good; the preparation method is simple and efficient and does not utilize an organic solvent, so that the protection method is green and environment-friendly.

The invention discloses a method for preparing a supermolecule capsule with multiple drug release stimulation and MRI radiography ability. A ferroferric oxide microcapsule is prepared as a novel multifunctional magnetic resonance noise and drug therapy medicament through a layer-by-layer self-assembly technology. Through the host-guest interaction and the Coulomb interaction of different supramolecular polymers, the medicine molecule is controllably released through the non-invasive ultraviolet radiation distributed azobenzene isomerism and the acid response Schiff base. Additionally the magnetic-targeted MRI contrast agent is obtained by encapsulating the superparamagnetic ferroferric oxide granule. The r2 relaxation rate of the microcapsule is increased by 37% to reach 125.71 mM-1S-1 compared with that of the neutral condition (92.02mM-1S-1) through the stimulation of subacidity (pH=5.6).