Kill–Resist–Renew Trinity: Hyperbranched Polymer with Self-Regenerating Attack and Defense for Antifouling Coatings,ACS Applied Materials & Interfaces

当前位置： X-MOL 学术 › ACS Appl. Mater. Interfaces › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Kill–Resist–Renew Trinity: Hyperbranched Polymer with Self-Regenerating Attack and Defense for Antifouling Coatings
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2021-03-12 , DOI: 10.1021/acsami.1c02273
Guoxiong Dai ₁ , Xiaoqing Ai ₁ , Liqin Mei ₁ , Chunfeng Ma ₁ , Guangzhao Zhang ₁

Affiliation

Traditional antifouling coatings are generally based on a single antifouling mechanism, which can hardly meet the needs of different occasions. Here, a single “kill–resist–renew trinity” polymeric coating integrating fouling killing, resistance, and releasing functions is reported. To achieve the design, a novel monomer-tertiary carboxybetaine ester acrylate with the antifouling group N-(2,4,6-trichlorophenyl)maleimide (TCB-TCPM) is synthesized and copolymerized with methacrylic anhydride via reversible addition-fragmentation chain transfer polymerization yielding a degradable hyperbranched polymer. Such a polymer at the surface/seawater is able to hydrolyze and degrade to short segments forming a dynamic surface (releasing). The hydrolysis of TCB-TCPM generates the antifouling groups TCPM (killing) and zwitterionic groups (resistance). Such a polymeric coating exhibits a controllable degradation rate, which increases with the degrees of branching. The antibacterial assay demonstrates that the antifouling ability arise from the synergistic effect of “attacking” and “defending”. This study provides a new strategy to solve the challenging problem of marine biofouling.

中文翻译：

杀灭抗拒三位一体：超支化聚合物，具有防污涂料的自再生进攻和防御能力

传统的防污涂料通常基于单一的防污机理，几乎不能满足不同场合的需求。在这里，报道了一种整合了污垢的杀灭，抵抗和释放功能的单一“杀伤－抵抗－更新三位一体”聚合物涂料。为了实现设计，新型的具有防污基团N的单体叔羧基甜菜碱酯丙烯酸酯合成-（2,4,6-三氯苯基）马来酰亚胺（TCB-TCPM），并通过可逆的加成-断裂链转移聚合与甲基丙烯酸酐共聚，得到可降解的超支化聚合物。地表/海水中的这种聚合物能够水解并降解为形成动态表面的短链段（释放）。TCB-TCPM的水解产生防污基团TCPM（杀灭）和两性离子基团（电阻）。这种聚合物涂层表现出可控制的降解速率，该降解速率随支化程度而增加。抗菌测定表明，防污能力源于“攻击”和“防御”的协同作用。这项研究提供了一种新的策略来解决海洋生物污染的挑战性问题。

更新日期：2021-03-24

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南