Abstract：
Alginate (Alg) coatings have attracted attention as protective layers on solid surfaces for marine antifouling applications due to their strong water binding capability and environmentally friendly characteristics. However, the effectiveness of Alg coatings in preventing marine fouling diminishes upon interaction with divalent cations present in seawater. To address this issue, post-modification of the Alg coating is conducted. The carboxyl groups of Alg, which are susceptible sites for interaction with divalent cations, are conjugated with polymerization initiators through metal-mediated coordination bond formation. Subsequently, poly(sulfobetaine methacrylate) (poly(SBMA)) brushes are grown from the initiator-immobilized Alg coatings, resulting in the formation of multilayered Alg/poly(SBMA) coatings. In marine diatom adhesion assays using Amphora Coffeaeformis, multilayered Alg/poly(SBMA) coatings exhibited superior antifouling performance compared to single-layered Alg or poly(SBMA) coating controls.
摘要：
海藻酸盐（Alg）涂料由于其强大的水结合能力和环保特性，作为海洋防污应用的固体表面上的保护层而受到关注。然而,在与海水中存在的二价阳离子相互作用时，Alg涂层防止海洋结垢的有效性降低。为了解决这个问题，我们对Alg涂层进行了后改性。Alg的羧基，它们是与二价阳离子相互作用的敏感位点，通过金属介导的配位键形成与聚合引发剂共轭。随后，聚（磺基甜菜碱甲基丙烯酸酯）（聚（SBMA））刷从引发剂固定的Alg涂层生长，导致多层Alg/聚(SBMA)涂层的形成。在使用AmphoraCoffeaeformis的海洋硅藻粘附测定中，与单层Alg或聚（SBMA）涂层对照相比，多层Alg/聚（SBMA）涂层表现出优异的防污性能。本文受版权保护。保留所有权利。
