• 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 >Formation of Continuous Dense Polymer Layer at the Surface of Hollow Fiber Using a Photografting Process
【24h】

Formation of Continuous Dense Polymer Layer at the Surface of Hollow Fiber Using a Photografting Process

机译：用光接枝法在中空纤维表面形成连续致密的聚合物层

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

The surface modification of a PES hollow fiber by UV photografting has been investigated in order to graft a dense polymer layer. The study focused on a UV photografting process, starting from a monomer solution, enabling the thickness and regularity of the grafted polymer to be followed. 2-(Acryloyloxy)ethyl trimethylammonium chloride was polymerized on the surface of the PES membrane. Modified membranes were characterized by SEM, FTIR spectroscopy, and liquid and gas permeability. A dense layer of poly(2-(acryloyloxy)ethyl trimethylammonium chloride) was obtained when a photoinitiator and a photocrosslinker were used. Polymerization of the ammonium material also occurred inside the pores of the membrane. With pretreatment and an increase of the irradiation time, the thickness of the grafted polymer decreased and gas permeability reached measurable levels. However, a CO2/N-2 selectivity of around 1 was found which suggested the presence of defects in the grafted layer. (c) 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 41514.
机译：为了接枝致密的聚合物层，已经研究了通过紫外光接枝对PES中空纤维进行表面改性。该研究的重点是从单体溶液开始的紫外光接枝过程，从而能够遵循接枝聚合物的厚度和规则性。在PES膜的表面上聚合2-（丙烯酰氧基）乙基三甲基氯化铵。改性膜通过SEM，FTIR光谱以及液体和气体渗透性进行表征。当使用光引发剂和光交联剂时，获得了致密的聚（2-（丙烯酰氧基）乙基三甲基氯化铵）层。铵材料的聚合也发生在膜孔内。随着预处理和辐照时间的增加，接枝聚合物的厚度减小，透气度达到可测量的水平。然而，发现CO 2 / N 2的选择性约为1，这表明在接枝层中存在缺陷。 （c）2014 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，41514。

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