海洋工程材料团队
[研究进展]戴国雄同学制备了“杀菌-抗污”表面可再生的超支化防污涂层(相关成果发表在ACS Appl. Mater. Interfaces上)
发布时间: 2021-09-17 浏览次数: 59

TitleKill−Resist−Renew Trinity: Hyperbranched Polymer with Self- Regenerating Attack and Defense for Antifouling Coatings

 


 

Abstract: 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

 

文章链接:https://pubs.acs.org/action/showCitFormats?doi=10.1021/acsami.1c02273&ref=pdf