Marine Antifouling Coatings Based on Durable Bottlebrush Polymers
Marine Antifouling Coatings Based on Durable Bottlebrush Polymers
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基于耐用刷子聚合物的海洋防污涂料
DOI：
10.1021/acsami.2c06647
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
Thissen Helmut
中科院分区：
文献类型：
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作者：
Yoshikawa Chiaki;Takagi Ryoma;Nakaji-Hirabayashi Tadashi;Ochi Toshiro;Kawamura Yasushi;Thissen Helmut
我们报告了下一代、不含杀菌剂且耐用的海洋防污涂料技术。为了实现这一目标，我们结合了我们之前开发的两种不同的聚合物。首先，我们合成了具有浓缩聚合物刷（CPB）结构的明确的2-羟丙基丙烯酰胺（HPA）基洗瓶刷聚合物，其表现出优异的生物惰性；其次，我们合成了2-羟丙基丙烯酰胺（HPA）和N-二苯甲酮丙烯酰胺（BPA）的光反应性共聚物，它可以通过暴露在阳光下30分钟来交联。简单地将瓶刷聚合物与光反应性共聚物混合并将其作为涂层应用，提供了一种可扩展的方法，可在多种聚合物基材材料上一步实现有效的防污性能。 80℃加速降解实验证明了洗瓶刷对酸碱水解的抵抗力，并且在海水中孵育3个月后发现涂层厚度稳定。优化的涂层可防止鲤鱼幼虫附着长达 9 天，并可防止海洋生物在海中沉积长达 73 天。由于易于施工、长期耐用和有效的防污性能，我们的瓶刷涂层技术有望在不含生物杀灭剂的海洋涂料中得到应用。
We report a next-generation, biocide-free, and durable marine antifouling coating technology. To achieve this, we combined two different polymers previously developed by us. First, we synthesized well-defined 2-hydroxypropyl acrylamide (HPA) based bottlebrush polymers with concentrated polymer brush (CPB) structures, which exhibit excellent bioinertness, and second, we synthesized photoreactive copolymers of 2-hydroxypropyl acrylamide (HPA) andN-benzophenone acrylamide (BPA), which can be cross-linked by exposure to sunlight for 30 min. Simply mixing the bottlebrush polymers with the photoreactive copolymers and applying these as a coating provided a scalable method for achieving effective antifouling properties in one step on a broad range of polymer substrate materials. The resistance of bottlebrushes against acid and base hydrolysis was demonstrated in accelerated degradation experiments at 80 °C, and the coating thickness was found to be stable after 3 months of incubation in sea water. Optimized coatings prevented cypris larva attachment for up to 9 days and prevented the settling of marine organisms in the sea for up to 73 days. Due to the ease of application, long-term durability, and effective antifouling performance, our bottlebrush coating technology is expected to be exploited in biocide-free marine paints.