海洋工程材料团队
[研究进展]艾孝青同学通过RAFT聚合制备具有污损阻抗性的可降解超支化防污涂层 (相关成果发表在Progress in Organic Coatings)
发布时间: 2021-09-17 浏览次数: 36

Title: Degradable Hyperbranched Polymer with Fouling Resistance for Antifouling Coatings

 

 

Abstract: The controlled release of antifoulant is critical in marine antifouling, which is profoundly influenced by the compatibility between polymer resin and antifoulant. Conjugation of polymers with active molecules provides a promising strategy to solve the problem. In this study, we report the synthesis of hyperbranched polymers containing antifouling main-chains and degradable branching points by using reversible addition-fragmentation chain-transfer (RAFT) polymerization. The copolymerization of butyl methacrylate, vinyl-functional Econea and divinyl-functional poly(ε-caprolactone) (PCL) yields a degradable hyperbranched antifouling polymer (DHAP). As revealed by 1H NMR, the vinyl conversion linearly increases over reaction time during RAFT polymerization with a final conversion rate above 90% after 24 h. The branching degree of DHAP increases with the content of PCL segment. Quartz crystal microbalance with dissipation (QCM-D) measurements show the degradation of DHAP is controlled. Antibacterial assays indicate that DHAP coating has good antibacterial activity. Thus, DHAP represents a promising system for antifouling coatings.

 

文章链接:https://www.sciencedirect.com/science/article/pii/S0300944021000114