Abstract The present work reports synthesis and development of zwitterionic tri-block copolymer-polyurethane (ZTC-PU) coatings which are thermally stable and have hydrophobic properties which can be used for marine applications. The zwitterionic tri-block copolymer (ZTC) (poly(sulfobetaine methacrylate) - polydimethylsiloxane - poly(sulfobetaine methacrylate), polySBMA-block-PDMS-block-polySBMA) was synthesized by ATRP (atom transfer radical polymerization) method. Apart from this, the facile synthesis of silane functionalized acrylic polyol was formulated with 4,4′- Methylene dicyclohexyl diisocyanate (H12 MDI) for the development of polyurethane (PU) coatings. Different weight ratios of ZTC was incorporated in PU to obtain a zwitterionic tri-block copolymer-polyurethane (ZTC-PU) coatings. The ZTC-PU coating exhibit good thermal stability and hydrophobic property. The coating showed excellent non-specific marine bacterial inhibition property along with good stability against gram positive Staphylococcus aureus ( S. aureus ) and gram negative Escherichia coli ( E. coli ) , Pseudomonas aeruginosa ( P. aeruginosa ) microbial strains. This design method reveals the development of zwitterionic-polyurethane coatings with higher amount of zwitterionic moiety in the coating system, that will be efficient and eco-friendly technology for marine bio-fouling application.

中文翻译：

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用于非特异性海洋细菌抑制的两性离子聚氨酯涂层：一种用于海洋应用的无毒方法

摘要 目前的工作报告了两性离子三嵌段共聚物-聚氨酯 (ZTC-PU) 涂层的合成和开发，这些涂层具有热稳定性和疏水性，可用于海洋应用。两性离子三嵌段共聚物（ZTC）（聚（磺基甜菜碱甲基丙烯酸酯）-聚二甲基硅氧烷-聚（磺基甜菜碱甲基丙烯酸酯），polySBMA-block-PDMS-block-polySBMA）通过ATRP（原子转移自由基聚合）方法合成。除此之外，硅烷官能化丙烯酸多元醇的简便合成是用 4,4'-亚甲基二环己基二异氰酸酯 (H12 MDI) 配制的，用于开发聚氨酯 (PU) 涂料。将不同重量比的 ZTC 掺入 PU 中以获得两性离子三嵌段共聚物 - 聚氨酯 (ZTC-PU) 涂层。ZTC-PU涂层表现出良好的热稳定性和疏水性。该涂层表现出优异的非特异性海洋细菌抑制性能，对革兰氏阳性金黄色葡萄球菌（S. aureus）和革兰氏阴性大肠杆菌（E.coli）、铜绿假单胞菌（P. aeruginosa）微生物菌株具有良好的稳定性。这种设计方法揭示了涂层体系中两性离子部分含量更高的两性离子聚氨酯涂层的发展，这将是用于海洋生物污垢应用的高效环保技术。铜绿假单胞菌）微生物菌株。这种设计方法揭示了涂层体系中两性离子部分含量更高的两性离子聚氨酯涂层的发展，这将是用于海洋生物污垢应用的高效环保技术。铜绿假单胞菌）微生物菌株。这种设计方法揭示了涂层体系中两性离子部分含量更高的两性离子聚氨酯涂层的发展，这将是用于海洋生物污垢应用的高效环保技术。