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Degradable polymer as well as preparation method and application thereof

A technology for degrading polymers and polymers, applied in the field of materials, can solve the problems of low content of antifouling groups, inability to achieve long-term effect and controllable release of antifouling groups, etc., and achieve excellent antibacterial effect and excellent prevention and control of water fouling. effect, the effect of realizing industrial production

Active Publication Date: 2022-07-05
GUANGDONG ZHANJIANG PROVINCIAL LAB OF SOUTHERN MARINE SCI & ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above existing studies, the self-degradable double-solution polymer materials can effectively realize the controllable self-renewal of the antifouling surface, but the self-degradation double-solution polymer materials have a small content of antifouling groups, and cannot realize the antifouling groups. Long-acting and controlled release, and often need to be used in combination with small molecule antifouling agents

Method used

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  • Degradable polymer as well as preparation method and application thereof
  • Degradable polymer as well as preparation method and application thereof
  • Degradable polymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] The raw materials for the preparation of the degradable polymer in this example are shown in Table 1.

[0067] Table 1 The raw material composition of the degradable polymer in Example 1

[0068] raw material parts by mass 2-Methylene-1,3-dioxepane 5 Glycidyl methacrylate 6 Azobisisobutyronitrile (AIBN) 0.05 Dithiothreitol 1.15 Trimethylsilyl 3,3-dimethacrylate 15.4 Lithium phenyl-2,4,6-trimethylbenzoylphosphonate (photoinitiator LAP) 0.03

[0069] The preparation steps of the degradable polymer in this example are as follows:

[0070] 1) In a reaction vessel under nitrogen atmosphere, add 5 parts by mass of 2-methylene-1,3-dioxepane, 6 parts by mass of glycidyl methacrylate, 0.05 parts by mass of AIBN and 40 parts by mass of dioxane Methyl chloride was reacted at 70°C for 3 hours to obtain a polymer containing an ethylene oxide group in the side chain;

[0071] 2) In the first step product solution, add 6.5 parts by...

Embodiment 2

[0075] The raw materials for the preparation of the degradable polymer in this example are shown in Table 2.

[0076] The raw material composition of table 2 embodiment 2 degradable polymer

[0077]

[0078]

[0079] The preparation steps of the degradable polymer in this example are as follows:

[0080] 1) In a reaction vessel under nitrogen atmosphere, 5 parts by mass of isophorone diisocyanate, 2 parts by mass of 1,4-butanediol, 4.5 parts by mass of poly(L-lactide-caprolactone), 0.6 parts by mass were added Glycidyl methacrylate and 50 parts of tetrahydrofuran were reacted at 70° C. for 1 hour to obtain the first-step product with an ethylene oxide group in the side chain;

[0081] 2) In the first step reaction solution, add 0.7 parts by mass of dithiothreitol (the molar ratio of dithiothreitol to carboxybetaine methacrylate is 1:15) and react under neutral, 37° C. conditions for 3 hours, the second-step product containing sulfhydryl in the side chain is prepared; ...

Embodiment 3

[0085] The raw materials for the preparation of the degradable polymer in this example are shown in Table 3.

[0086] The raw material composition of table 3 embodiment 3 degradable polymer

[0087] raw material parts by mass Toluene Diisocyanate 5 1,4-Butanediol 2.6 Poly(L-lactide-caprolactone) 4.5 Thioglycerol 0.6 GAMMA-butyrolactone-3-yl methacrylate 10 Lithium phenyl-2,4,6-trimethylbenzoylphosphonate (photoinitiator LAP) 0.03

[0088] The preparation steps of the degradable polymer in this example are as follows:

[0089] 1) In a reaction vessel in a nitrogen atmosphere, 5 parts by mass of toluene diisocyanate, 2.6 parts by mass of 1,4-butanediol, 4.5 parts by mass of poly(L-lactide-caprolactone) (molecular weight 1000), 0.6 parts by mass Parts of thioglycerol and 50 parts of tetrahydrofuran were reacted at 70° C. for 1 hour to obtain the first-step product with a sulfhydryl group in the side chain;

[0090] 2) In the f...

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Abstract

The invention discloses a degradable polymer as well as a preparation method and application thereof. The degradable polymer is simple in structure, the side chain of the degradable polymer contains a large number of antifouling functional groups, and the number of the antifouling functional groups can be adjusted through the polymerization degree of the antifouling functional monomer; meanwhile, continuous and stable release of antifouling functional groups can be realized through degradable bonds. The preparation method of the degradable polymer is simple, efficient and easy to realize, has strong universality and practicability, and can realize industrial production. The coating prepared from the degradable polymer has excellent water fouling prevention and treatment effects and antibacterial effects, and does not need to be compounded with an antifouling agent, and the degradable polymer and the prepared coating can be widely applied to the field of water fouling prevention and treatment.

Description

technical field [0001] The invention belongs to the field of materials, and in particular relates to a degradable polymer and a preparation method and application thereof. Background technique [0002] The marine environment is rich in nutrients, and the marine engineering equipment operating in the sea area inevitably has serious marine biofouling problems. The attachment of marine organisms not only changes the surface state of the equipment, induces and promotes corrosion, shortens the service life of the equipment, but also increases the diameter of the underwater components, which significantly increases the wave resistance and dynamic load of the structure, and the drag force of the waves greatly increases. cause serious safety hazards. The development of anti-fouling paints that can continuously and stably release anti-fouling groups and realize long-term protection of marine equipment has practical significance for the structural safety of marine equipment and the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/02C08F230/08C08F283/00C08F220/36C08F220/28C08G63/91C08G63/08C08G18/66C08G18/42C08G18/32C08G18/83C09D5/14C09D5/16C09D151/08
CPCC08F283/02C08F283/006C08G63/912C08G63/08C08G18/664C08G18/4277C08G18/3206C08G18/835C08G18/3876C09D5/14C09D5/1662C09D151/08C08G2230/00C08G2150/00C08F230/085C08F2500/26C08F220/365C08F220/282
Inventor 赵彩玲陆江汪建明李欣鲁国强刘洒文黄锦圳
Owner GUANGDONG ZHANJIANG PROVINCIAL LAB OF SOUTHERN MARINE SCI & ENG
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