Silicone Elastomer with Surface-Enriched, Nonleaching Amphiphilic Side Chains for Inhibiting Marine Biofouling

被引：43

作者：

Zeng, Haohang ^{[1
]}

Xie, Qingyi ^{[1
]}

Ma, Chunfeng ^{[1
]}

Zhang, Guangzhao ^{[1
]}

机构：

[1] South China Univ Technol, Fac Mat Sci & Engn, Guangzhou 510640, Guangdong, Peoples R China

来源：

ACS APPLIED POLYMER MATERIALS | 2019年 / 1卷 / 07期

基金：

中国国家自然科学基金;

关键词：

silicone elastomer; amphiphiles; telomerization; marine biofouling fouling release; FOULING RELEASE COATINGS; SUM-FREQUENCY GENERATION; MICROFOULING LAYER; POLYURETHANE; COPOLYMER; POLYMER; FILMS; PERFORMANCE; TEMPERATE; BARNACLES;

D O I：

10.1021/acsapm.9b00253

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Silicone elastomer is one of the ecofriendly fouling release materials. However, it suffers from poor fouling resistant performance during idle periods. We developed a silicone elastomer with self-stratifying, nonleaching amphiphilic side chains by grafting telomer of dodecafluoroheptyl methacrylate (DFMA), poly(ethylene glycol) methyl ether methacrylate (PEGMA), and 3-mercaptopropyl trimethoxysilane (KH590) to bis-silanol terminated silicone. The amphiphilic telomer can be self-enriched on the surface during coating formation because the fluorocarbon segment with low surface energy is incompatible with silicone. Meanwhile, the telomer with KH590 can cross-link to silicone so that it is nonleaching. Such modified silicone elastomer has a low surface energy and low elastic modulus close to the unmodified one because most of the amphiphilic telomers are on the surface, so the former as a coating still has excellent fouling release performance. Moreover, it has remarkable fouling resistance toward marine bacterial biofilm and diatoms under a suitable molar ratio of DFMA and PEGMA (GF1P2). Such a modified silicone elastomer is expected to find application to inhibit marine biofouling.

引用

页码：1689 / 1696

页数：15

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