Functional Sulfobetaine Polymers: Synthesis and Salt-Responsive Stabilization of Oil-in-Water Droplets

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• 作者：Chia-Chih Chang ; Rachel Letteri ; Ryan C. Hayward ; Todd Emrick
• 刊名：Macromolecules
• 出版年：2015
• 出版时间：November 10, 2015
• 年：2015
• 卷：48
• 期：21
• 页码：7843-7850
• 全文大小：433K
• ISSN：1520-5835

文摘

Novel zwitterionic sulfobetaine polymers were synthesized, featuring alkene and alkyne groups embedded directly into the zwitterionic subunits. Alkene and alkyne versions of 1,3-propane sultone afforded access to functional zwitterionic methacrylates, which proved amenable to controlled free radical polymerization and copolymerization. These functional variants of polymer zwitterions exhibited desirable salt-responsive behavior characteristic of many polymer zwitterions, in which salt screened electrostatic interactions and resulted in droplet coalescence. Moreover, the presence of unsaturated groups in these polymers opens routes to facile chemistry at fluid鈥揻luid interfaces and the preparation of robust polymer capsules.