• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Applied Polymer Science >Making polymeric membranes antifouling via 'grafting from' polymerization of zwitterions
【24h】

Making polymeric membranes antifouling via 'grafting from' polymerization of zwitterions

机译：通过两性离子的“接枝”聚合制备聚合物膜防污剂

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Protein-fouling of membranes has negative effects on the wide applications of membrane materials, such as poly(vinylidene fluoride) (PVDF), poly(ether sulfone) (PES)/polysulfone (PSf). Zwitterionic materials have recently been used and identified from high throughput screens of large libraries of monomers to modify membranes due to their stable anti-protein-fouling properties. Grafting from polymerization is a technique involving monomers that are polymerized using an initiation reaction on the membrane surface. It is regarded as a simple, useful, and versatile modification approach to increase the anti-fouling properties of a membrane. This strategy provides controllable introduction of graft chains with a high density and a long-term chemical stability due to covalent attachment of graft chains. Graft density, chemistry, chain length, and conformation are all important parameters that need to be considered. This article presents a mini-review of recent progress on the grafting from polymerization of zwitterionic monomers on the surfaces of PVDF and PES/PSf membranes, including an introduction of zwitterions and methods of graft polymerization. Various approaches such as free radical graft polymerization, photo-induced graft polymerization, and plasma-induced graft polymerization were compared based on uniformity and amount of grafted zwitterionic polymer, relative flux of modified membranes, simplicity and environment pollution of operation, and cost of technique. The application of different approaches and the performance of poly(zwitterion)-grafted PVDF and PES/PSf membranes are summarized according to recent research. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41781.
机译：膜的蛋白质污染会对膜材料的广泛应用产生负面影响，例如聚偏二氟乙烯（PVDF），聚醚砜（PES）/聚砜（PSf）。两性离子材料由于其稳定的抗蛋白质结垢特性，最近已被使用并已从大型单体库的高通量筛选中鉴定出来，以修饰膜。聚合接枝是一种涉及通过在膜表面上使用引发反应使单体聚合的技术。它被认为是增加膜的防污性能的简单，有用和通用的改性方法。由于共价连接了嫁接链，因此该策略可控制地引入具有高密度和长期化学稳定性的嫁接链。接枝密度，化学性质，链长和构象都是需要考虑的重要参数。本文对两性离子单体在PVDF和PES / PSf膜表面的聚合反应的接枝进展进行了简要回顾，包括两性离子的介绍和接枝聚合方法。根据接枝两性离子聚合物的均匀性和数量，改性膜的相对通量，操作的简便性和环境污染以及技术成本，比较了自由基接枝聚合，光诱导接枝聚合和等离子体诱导接枝聚合等各种方法。 。根据最近的研究，总结了不同方法的应用以及聚（两性离子）接枝的PVDF和PES / PSf膜的性能。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41781。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号