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Synthesis of Novel Sulfobetaine Polymers with Differing Dipole Orientations in Their Side Chains, and Their Effects on the Antifouling Properties.
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2019-11-20 , DOI: 10.1002/marc.201900447
Eric Schönemann 1 , Julian Koc 2 , Nick Aldred 3 , Anthony S Clare 3 , André Laschewsky 1, 4 , Axel Rosenhahn 2 , Erik Wischerhoff 5
Affiliation  

The impact of the orientation of zwitterionic groups, with respect to the polymer backbone, on the antifouling performance of thin hydrogel films made of polyzwitterions is explored. In an extension of the recent discussion about differences in the behavior of polymeric phosphatidylcholines and choline phosphates, a quasi-isomeric set of three poly(sulfobetaine methacrylate)s is designed for this purpose. The design is based on the established monomer 3-[N-2-(methacryloyloxy)ethyl-N,N-dimethyl]ammonio-propane-1-sulfonate and two novel sulfobetaine methacrylates, in which the positions of the cationic and the ionic groups relative to the polymerizable group, and thus also to the polymer backbone, are altered. The effect of the varied segmental dipole orientation on their water solubility, wetting behavior by water, and fouling resistance is compared. As model systems, the adsorption of the model proteins bovine serum albumin (BSA), fibrinogen, and lysozyme onto films of the various polyzwitterion surfaces is studied, as well as the settlement of a diatom (Navicula perminuta) and barnacle cyprids (Balanus improvisus) as representatives of typical marine fouling communities. The results demonstrate the important role of the zwitterionic group's orientation on the polymer behavior and fouling resistance.

中文翻译:

新型侧链偶极子取向不同的磺基甜菜碱聚合物的合成及其对防污性能的影响。

研究了两性离子基团的取向(相对于聚合物主链)对由聚两性离子制成的水凝胶薄膜的防污性能的影响。在有关聚合物磷脂酰胆碱和胆碱磷酸酯的行为差异的最新讨论的扩展中,为此目的设计了一组三种聚(磺基甜菜碱甲基丙烯酸甲酯)的准异构体。该设计基于已建立的单体3- [N-2-(甲基丙烯酰氧基)乙基-N,N-二甲基]铵丙烷-1-磺酸盐和两种新型磺基甜菜碱甲基丙烯酸酯,其中阳离子基团和离子基团的位置相对于可聚合基团,并且因此还相对于聚合物主链,相对分子被改变。分段偶极子取向的变化对其水溶性,水润湿行为的影响,并比较耐污垢性。作为模型系统,研究了模型蛋白牛血清白蛋白(BSA),纤维蛋白原和溶菌酶在各种多性两性离子表面膜上的吸附,以及硅藻(Navicula perminuta)和藤壶塞浦路斯(Balanus improvisus)的沉降。作为典型的海洋污染社区的代表。结果表明两性离子基团的取向对聚合物的行为和抗污性具有重要作用。
更新日期:2019-11-20
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