文献类型：期刊文献

英文题名：Examination of functional zwitterionic polymer hydrogels based on polypyridinium salt by a convenient cross-linker

作者：Sun, Yunlong[1];Chen, Changlin[1];Xu, Heng[2];Lei, Kun[1];Zhao, Li[3];Lang, Meidong[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China;[2]Collaborat Innovat Ctr Petrochem New Mat, Anqing, Anhui, Peoples R China;[3]East China Univ Sci & Technol, New World Inst Biotechnol, State Key Lab Bioreactor Engn, Shanghai, Peoples R China

年份：2019

卷号：56

期号：4

起止页码：287

外文期刊名：JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY

收录：;EI(收录号：20190606466657);WOS:【SCI-EXPANDED(收录号:WOS:000468607200001)】；

基金：This research was supported by the National Key Research and Development Program (2016YFC1100703), National Key Technology Support Program (2015BAD16B05-04) and Natural Science Foundation of Shanghai (No.2013ZR1412100).

语种：英文

外文关键词：Zwitterionic polymer; hydrogels; antibacterial ability; antifouling ability; polypyridinium salt

摘要：In this work, two novel zwitterionic polymer hydrogels (Gel-P4VP-psl (d), Gel-P4VP-bpa (d)) and cationic polymer hydrogels (Gel-P4VP-eb (f)) were prepared for the first time. The differences of functionality between cationic polymer hydrogels and zwitterionic polymer hydrogels were studied fully. The results showed that when the molar quantity ratio of cross-linker/pyridinium unit in Gel-P4VP-psl (d) and Gel-P4VP-bpa (d) was about 0.25:1, they would have proper mechanical property, excellent antibacterial ability and antifouling ability. Correspondingly, the charge quantity ratios of negative charges/positive charges in Gel-P4VP-psl (d) and Gel-P4VP-bpa (d) could be calculated to be 1:2 theoretically. Although Gel-P4VP-eb (f) with only positive charges had strongly antibacterial ability, being lack of negative charges in cationic polymer hydrogels made its antifouling ability disappear completely. Gel-P4VP-psl (d) and Gel-P4VP-bpa (d) have potential in the application of antibacterial and antifouling materials.