Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Side chain functionalized amphiphilic polyurethane and preparation method and application thereof

A functional and amphiphilic technology, applied in polyurea/polyurethane coatings, coatings, paints containing biocides, etc., can solve the problems of multiple steps, unfavorable industrialization, etc., and achieve good adhesion and good self-emulsification Sexuality and good application prospects

Inactive Publication Date: 2011-09-07
SOUTH CHINA UNIV OF TECH
View PDF3 Cites 45 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The methods currently used mainly include surface grafting of hydrophilic polymers, blending of antibacterial agents, etc., but surface grafting requires multiple steps, which is not conducive to the process of industrialization
However, there are problems of long-term effect and release in blending

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 12g of acrylic acid, 0.0012g of azobisisobutyronitrile, and 0.8g of mercaptopropylene glycol into a three-necked flask with a stirrer and a thermometer, then add 30ml of tetrahydrofuran, react at 60°C for 12h under nitrogen protection, and then precipitate and separate polyacrylic acid Diol macromolecular chain extender, dry for later use. Add 12.5 g of polypropylene glycol into another three-necked flask with a stirrer and a thermometer, dehydrate at 120°C for 2 hours, cool down to 60°C, add 100ml of tetrahydrofuran, and then add 9.6g of diphenylmethyl diisocyanate (MDI). 10 g of the polyacrylic acid diol macromolecular chain extender and 0.24 g of dibutyltin dilaurate were added to the flask, and after stirring and reacting for 2 hours, the reactant was added into water to self-emulsify to form a polyurethane emulsion.

Embodiment 2

[0022] Add 20g of ethylene glycol methacrylate, 0.002g of azobisisobutyronitrile, and 0.12g of mercaptopropylene glycol into a three-necked flask with a stirrer and a thermometer, then add 30ml of acetone, and react at 75°C for 5h under nitrogen protection. Then the poly(ethylene glycol methacrylate) diol macromolecular chain extender is separated by precipitation, and dried for future use. Add 25g of polytetrahydrofuran ether glycol into a three-neck flask with another stirrer and a thermometer, add 200ml of acetone, then add 19.2g of toluene diisocyanate, stir for 35min, and then add the above-mentioned poly(ethylene glycol methacrylate) into the flask 26g of ester diol macromolecular chain extender and 0.4g of stannous octoate were added into water for self-emulsification after stirring for 3 hours to form a polyurethane emulsion. The polyurethane is formed into a film according to a conventional method, and the material has a good resistance effect on fibrinogen, lysozyme ...

Embodiment 3

[0024] Add 15g of dimethylaminoethyl methacrylate, 0.0015g of azobisisobutyronitrile, and 0.10g of mercaptopropylene glycol into a three-necked flask with a stirrer and a thermometer, then add 30ml of xylene, and react under nitrogen protection at 80°C After 10 hours, the polydimethylaminoethyl methacrylate diol macromolecular chain extender was separated by precipitation, and dried for future use. Add 25g of polyglycolide diol into another three-necked flask with a stirrer and a thermometer, add 200ml of xylene, then add 19.2g of isophorone diisocyanate, stir for 40min, and then add the above-mentioned polymethacrylic acid 20 g of dimethylaminoethyl diol macromolecular chain extender and 0.24 g of dibutyltin dilaurate were added to water for self-emulsification after continuing to stir and react for 10 hours to form a polyurethane emulsion. The polyurethane is formed into a film according to a conventional method, and the formed polymer is formed into a film according to a co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses side chain functionalized amphiphilic polyurethane and a preparation method and application thereof. The preparation method of the polyurethane is characterized by comprising the following steps of: mixing polymer diol, diisocyanate and a chain extender for reaction, adding a reaction product into water and self-emulsifying to obtain polyurethane emulsion, wherein the macromolecular chain extender is prepared by performing free radical polymerization reaction on a sulfhydryl-containing monomer and a double bond monomer in the presence of an initiator; and the formed amphiphilic polyurethane can have the protein resistance or antibacterial property of side chain hydrophilic polymer, the characteristics of high mechanical property and adhesion of main chain polyurethane can be utilized, and the amphiphilic polyurethane has high self-emulsifying property due to the chain segment of the hydrophilic polymer. The method is simple, low in cost and suitable for industrial production, and the material has a good application prospect in fields of preparation of water-based coatings and antifouling and biomedical material coatings.

Description

technical field [0001] The invention relates to the technical field of antifouling materials and preparation methods thereof, in particular to a side chain functionalized amphiphilic polyurethane and its preparation method and application. Background technique [0002] Polyurethane materials have excellent physical and mechanical properties and good biocompatibility, and have a wide range of applications in the field of biomedical materials, such as internal implants (intervention catheters, artificial cardiac pacemakers, etc.) and medical material coatings. However, when in contact with blood, there are still plasma proteins adsorbed on its surface, resulting in thrombus formation. On the other hand, during the long-term use of polyurethane materials, bacteria are easy to grow and reproduce under suitable temperature and humidity conditions, forming biofilms, causing biofouling and seriously threatening people's health. Therefore, it is of great application value to modify...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08G18/62C08G18/48C08G18/42C08G18/66C08G18/61C09D175/04C09D175/08C09D175/06C09D5/16A61L29/08A61L31/10
Inventor 张广照马春风
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com