A facile method for the preparation of poly(vinylidene fluoride) membranes filled with cross-linked sulfonated polystyrene
作者:Naeun Kang、Junhwa Shin、Taek Sung Hwang、Youn-Sik Lee
DOI:10.1016/j.reactfunctpolym.2015.12.006
日期:2016.2
poly(vinylidene fluoride) (PVDF) membranes were filled with tetrabutylammonium 4-vinylbenzene sulfonate (TVS), a cross-linking agent, and a radical initiator in dimethyl sulfoxide, followed by radical polymerization and subsequent replacement of tetrabutylammonium ions by protons. This pore-filling method using an organic-soluble sulfonate monomer was very efficient and convenient, as it avoids the highly acidic
摘要用二乙烯基亚砜中的4-乙烯基苯磺酸四丁基铵,交联剂和自由基引发剂填充聚偏二氟乙烯(PVDF)膜的孔,然后进行自由基聚合,随后用质子取代四丁基铵离子。使用有机可溶性磺酸盐单体的这种孔填充方法非常有效和方便,因为它避免了高酸性的磺化步骤。填充有交联磺化聚苯乙烯的PVDF膜的长度尺寸变化与Nafion 212类似,但吸水率更高,并且机械模量和伸长率大大提高。在相同条件下,改性膜的质子电导率也高于Nafion 212。