16 results about "Temperature-responsive polymer" patented technology

Provided is a novel technique with which a temperature-responsive polymer, a hydrophilic polymer, and a hydrophobic polymer can be produced separately in a simple manner. The polymerizable composition contains the following monomers (A-1) and (B-1). (A-1) is a monomer represented by formula (1-1), and (B-1) is a monomer represented by formula (2-1) (in formula (1-1), R1 represents an alkanediyl group having 1-5 carbon atoms, and n represents an integer of 1-10). ) (In formula (2-1), R2 represents a linear alkanediyl group having 1-5 carbon atoms. ).

A system including: a temperature responsive polymer configured to expand to a cross-sectional area of a fluid channel when a temperature of the fluid in the fluid channel is greater than or equal to a temperature threshold Tth, and to retract to less than the cross-sectional area when the temperature of the fluid in the fluid channel is less than Tth, an expandable material layer surrounding the temperature responsive polymer and configured to expand and retract with the expansion and retraction of the temperature responsive polymer, and a sieve housing encasing the expandable material and being configured to be disposed in the fluid channel, wherein when the temperature of the fluid in the fluid channel is greater than or equal to Tth, the temperature responsive polymer expands to the cross-sectional area such that the expandable material layer prevents the fluid in the fluid channel from passing through the sieve housing.

A core material with a three-point support structure and tarsal bone correction shape is provided under the body temperature responsive polymer layer to achieve "responsiveness to the soles of each user's feet" and "improved tarsal bone correction effect." [Solution] Insole 1 has a substantially flat core material 3 beneath a body temperature responsive polymer layer 2. The body temperature responsive polymer layer 2 softens and deforms to fit the shape of the sole of the foot due to the user's body temperature, and core material 3 has a three-point support structure 4 and a tarsal bone correction shape 5. Furthermore, core material 3 is made of nylon 6 resin, and body temperature responsive polymer layer 2 has a non-slip portion 6, body temperature responsive polymer layer 2 returns to its initial shape after use, an elastic buffer layer 7 is provided between body temperature responsive polymer layer 2 and core material 3, core material 3 has a pressure dispersion shape, core material 3 has a vibration detection structure, and insole 1 does not have to have a built-in sensor, drive circuit, or drive power source. Insole 1 may also be used in footwear.

The present invention provides formulations comprising a suspension of nanocellulose (NC) elements and a drying / dispersal additive selected from the group consisting of temperature-responsive polymers, small molecule additives in volatile systems, and blocking agents and methods of preparing such formulations, and further provides NC-containing materials, composite materials and useful articles of manufacture made therefrom.

The application provides a temperature-responsive polymer, which comprises a repeating unit shown in the following formula I; the formula I is a polymerization product of two monomers of 2-(2-methoxyethoxy)methyl acrylate (MEO2MA) and 2-(2-hydroxyethoxy)ethyl methacrylate (HEO2MA); in the formula I, x is 1-100; y is 20-500. The smart window prepared from the temperature-responsive polymer has the characteristics of wide temperature response range, high light transmittance, excellent heat insulation performance and long-term stability, and can be widely applied to light-collecting and temperature-controlling parts in various scenes such as residential buildings, commercial buildings and public facilities, and has significant energy-saving value and market prospect.

The present invention provides a novel embolic substance.　Specifically, the present invention provides an embolic substance containing a temperature-responsive polymer and nanofibers.

This invention provides a temperature-responsive material that can provide a sufficient response even in environments where water is present. [Solution] The temperature-responsive hydrogel has a structure in which a temperature-responsive polymer is bonded via an amide bond derived from the carboxyl group of at least one alginic acid selected from alginic acid, alginic acid salts, and their derivatives.

The invention relates to the technical field of traditional Chinese medicine external preparations, and discloses a traditional Chinese medicine cataplasm matrix formula for promoting blood circulation to remove blood stasis and preventing DVT. 8-15 parts of radix salviae miltiorrhizae; 5-10 parts of ligusticum wallichii; 5-10 parts of safflower; 3-8 parts of earthworm; 3-7 parts of poria cocos; 0.5 to 2 parts of borneol; 10 to 20 parts of a temperature responsive polymer; 5-15 parts of a pressure responsive polymer; 15 to 25 parts of a biodegradable high polymer material; and 1-5 parts of a biocompatibility auxiliary agent. Through the combination of the temperature-responsive polymer and the pressure-responsive polymer, the temperature-responsive polymer ensures the sufficient release of the medicine and prevents the formation of thrombus when the patient lies still in the early stage after the operation; and during later-stage activity, the drug release amount can be automatically reduced, so that skin irritation caused by excessive drugs is avoided, the anti-thrombus effect is ensured, drug residues are reduced, and the comfort and safety of treatment are improved.

This invention provides a novel method for controlling ionic conductivity using a polymer solution that dissolves in an organic solvent at low temperatures to form a transparent solution and undergoes phase separation upon heating; specifically, a temperature-responsive polymer that induces lower critical solution temperature (LCST) type phase separation. The method allows the ionic conductivity of a temperature-responsive ionic solution containing a temperature-responsive polymer, a salt, and an organic solvent, wherein the salt dissociates into ionic components, to change with temperature. Preferably, the temperature-responsive polymer is one that exhibits LCST type phase separation.

The application belongs to the technical field of water treatment, and specifically discloses a water treatment equipment and method for hemodialysis. The equipment sequentially comprises, along a water treatment direction: a pretreatment unit for removing suspended solids and impurities in raw water, wherein the impurities include residual chlorine and calcium and magnesium ions; an ultrafiltration unit comprising a polyether sulfone ultrafiltration membrane and a temperature-controlled heating backwashing system; the polyether sulfone ultrafiltration membrane surface has a sharkskin microgroove structure and is grafted with a temperature-responsive polymer with a low critical solution temperature of 30-35 DEG C; a reverse osmosis unit comprising a reverse osmosis membrane; and an electrochemical auxiliary sterilization unit comprising an anode boron-doped diamond electrode, a cathode and a pulse power supply. The application realizes active anti-fouling and thermal flow coupling self-cleaning of the membrane assembly through the cooperation of physical microgrooves and chemical temperature-responsive polymers, and effectively blocks the formation of biofilm and instant mineralization sterilization in combination with nanosecond pulse advanced oxidation technology, thereby improving the quality and safety of dialysis water.

A tri-block copolymer includes a first end block consisting of a hydrophobic, nano-fiber forming polymer, wherein the first end block is present in the tri-block copolymer at a weight percentage ranging from about 10% to about 89%; a middle block attached to the first end block, the middle block consisting of a hydrophilic polymer, wherein the middle block is present in the tri-block copolymer at a weight percentage ranging from about 1% to about 89%; and a second end block attached to the middle block, the second end block consisting of a temperature-responsive polymer, wherein the second end block is present in the tri-block copolymer at a weight percentage ranging from about 1% to about 89%.

The invention discloses a temperature-responsive Pickering emulsion and a preparation method thereof, and relates to the technical field of functional Pickering emulsion preparation. The emulsion is an oil-in-water type emulsion, and a dispersion phase is aldehyde perfume. The emulsion is prepared mainly based on self-assembly of CNC and an ammonia-terminated temperature-responsive polymer ligand PNIPAM-NH2 on an oil-water interface, and the stable Pickering emulsion is formed. An interfacial film can be formed at a two-phase interface, and by utilizing different states of PNIPAM-NH2 at a critical temperature (37 DEG C), a molecular chain shrinks and falls off from the interface at a temperature higher than the critical temperature, so that aldehyde perfume substances are released. The preparation method is simple, the reaction conditions are mild, and the used raw materials are biodegradable substances, so that the green and environment-friendly requirements are met. Besides, the emulsion can realize temperature response release, the release amount and the release effect of the aromatic oil are controlled by adjusting the temperature response time, and the emulsion shows a good application prospect.

The application discloses a covalent triazine framework temperature-responsive nanofiltration membrane in the technical field of nanofiltration membranes, a preparation method thereof and application thereof in lithium selective separation, and relates to a covalent triazine framework temperature-responsive nanofiltration membrane, which comprises a support membrane and a separation layer arranged on the support membrane, wherein the separation layer comprises covalent triazine skeleton nanomaterial, polyethyleneimine (PEI) and a temperature-responsive polymer; the covalent triazine skeleton nanomaterial is synthesized into CTF-0 and CTF-NH nanomaterials, and is poured onto the surface of a PEI modified support membrane in sequence, and is constructed on the surface of the PEI modified support membrane through ultraviolet irradiation; the temperature-responsive polymer is grafted to the surface and / or the inner wall of pores of the separation layer, and the temperature-responsive polymer can reversibly change the segment conformation under temperature stimulation, so as to reversibly change the pore size and / or the hydrophilic-hydrophobic property of the separation layer; and the covalent triazine framework temperature-responsive nanofiltration membrane prepared by the application can simultaneously improve the flux and selectivity of the membrane and enhance the anti-pollution ability of the membrane, and provides a feasible path for the development of a next-generation high-performance self-adapting separation membrane material.

To provide a medical solution having excellent flowability capable of spreading over the entire wound surface and retentivity capable of staying in an affected part as medical solution for treating bedsore or damaged skin.SOLUTION: A medical solution for treating bedsore or damaged skin contains medicine for treating bedsore or damaged skin, temperature-responsive polymers which cause gelatinization of the medical solution when the medical solution is exposed to a body temperature of an affected part, and solvent, and is used to be applied to the affected part in a foam state.SELECTED DRAWING: Figure 3

Disclosed herein is a light control glass that can be produced through a simple process and can offer stable performance. The light control glass includes transparent substrates facing each other and a light control material disposed between the transparent substrates, the light control material being a mixture of a temperature-responsive polymer (PNIPAM) having a lower critical solution temperature and a material (thermoreversible gelation polymer: TGP) that turns into a gel at a temperature equal to or lower than the lower critical solution temperature. In addition, FTO or ITO may be disposed on the surfaces of the transparent substrates being in contact with TGP.

The present invention provides formulations comprising a suspension of nanocellulose (NC) elements and a drying / dispersal additive selected from the group consisting of temperature-responsive polymers, small molecule additives in volatile systems, and blocking agents and methods of preparing such formulations, and further provides NC-containing materials, composite materials and useful articles of manufacture made therefrom.