基于耐用瓶刷聚合物的船舶防污涂料,ACS Applied Materials & Interfaces

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基于耐用瓶刷聚合物的船舶防污涂料
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2022-07-11 , DOI: 10.1021/acsami.2c06647
Chiaki Yoshikawa ₁ , Ryoma Takagi _{1,

2} , Tadashi Nakaji-Hirabayashi _{1,

2,

3} , Toshiro Ochi ₄ , Yasushi Kawamura ₄ , Helmut Thissen ₅

Affiliation

我们报告了下一代、无杀菌剂、耐用的海洋防污涂料技术。为了实现这一点，我们结合了我们之前开发的两种不同的聚合物。首先，我们合成了明确的 2-羟丙基丙烯酰胺 (HPA) 基瓶刷聚合物，其具有浓缩聚合物刷 (CPB) 结构，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），暴露在阳光下30分钟即可交联。简单地将瓶刷聚合物与光反应性共聚物混合并将它们作为涂层应用，提供了一种可扩展的方法，可在一个步骤中在多种聚合物基材上实现有效的防污性能。在 80 °C 的加速降解实验中证明了瓶刷对酸碱水解的抵抗力，并且发现在海水中孵育 3 个月后涂层厚度保持稳定。优化的涂层可防止塞浦路斯幼虫附着长达 9 天，并防止海洋生物在海中沉降长达 73 天。由于易于应用、长期耐用性和有效的防污性能，

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Marine Antifouling Coatings Based on Durable Bottlebrush Polymers

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) and N-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.

更新日期：2022-07-11

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