PDF(Pubmed)
Abstract：
Benzoxazine resins are new thermosetting resins with excellent thermal stability, mechanical properties, and a flexible molecular design, demonstrating promise for applications in marine antifouling coatings. However, designing a multifunctional green benzoxazine resin-derived antifouling coating that combines resistance to biological protein adhesion, a high antibacterial rate, and low algal adhesion is still challenging. In this study, a high-performance coating with a low environmental impact was synthesized using urushiol-based benzoxazine containing tertiary amines as the precursor, and a sulfobetaine moiety into the benzoxazine group was introduced. This sulfobetaine-functionalized urushiol-based polybenzoxazine coating (poly(U-ea/sb)) was capable of clearly killing marine biofouling bacteria adhered to the coating surface and significantly resisting protein attachment. poly(U-ea/sb) exhibited an antibacterial rate of 99.99% against common Gram negative bacteria (e.g., Escherichia coli and Vibrio alginolyticus) and Gram positive bacteria (e.g., Staphylococcus aureus and Bacillus sp.), with >99% its algal inhibition activity, and it effectively prevented microbial adherence. Here, a dual-function crosslinkable zwitterionic polymer, which used an \"offensive-defensive\" tactic to improve the antifouling characteristics of the coating was presented. This simple, economic, and feasible strategy provides new ideas for the development of green marine antifouling coating materials with excellent performance.
摘要：
苯并恶嗪树脂是新型的热固性树脂，具有优异的热稳定性，机械性能，灵活的分子设计，展示了在海洋防污涂料中应用的前景。然而,设计一种多功能的绿色苯并恶嗪树脂衍生的防污涂料，结合了对生物蛋白质粘附的抵抗力，高抗菌率，和低藻类附着力仍然是具有挑战性的。在这项研究中,以含叔胺的漆酚基苯并恶嗪为前体，合成了对环境影响小的高性能涂料，并在苯并恶嗪基团中引入磺基甜菜碱部分。这种磺基甜菜碱官能化的基于漆酚的聚苯并恶嗪涂层（聚（U-ea/sb））能够明显杀死粘附在涂层表面的海洋生物污损细菌，并显着抵抗蛋白质的附着。聚(U-ea/sb)对常见革兰氏阴性菌表现出99.99%的抗菌率(例如，大肠杆菌和溶藻弧菌)和革兰氏阳性菌(例如，金黄色葡萄球菌和芽孢杆菌。),其藻类抑制活性>99%，它有效地防止了微生物的粘附。这里,双功能可交联两性离子聚合物，提出了一种“攻防”策略来提高涂层的防污特性。这个简单的，经济,为开发性能优异的绿色海洋防污涂料提供了新思路。
