Jing Zhang, Dan Xu, Jiangna Guo,Zhe Sun,Wenjing Qian,Ye Zhang,Feng Yan
Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China
Macromol. Rapid Commun. ，2016, 37, 1194−1199
Poly(ionic liquid) (PIL) gels with CO2 stimulus responsiveness have been synthesized through the copolymerization of an imidazolium-type ionic liquid monomer with 2-(dimethyl amino) ethyl methacrylate. Upon bubbling with CO2 gas, the prepared PIL solution is converted to a transparent and stable gel, which can be turned back to the initial solution state after N2 bubbling. The reversible sol–gel phase transition behavior is proved by the reversible values of viscosity and ionic conductivity. The possible mechanism for such a reversible sol–gel phase transition is demonstrated by NMR, conductivity, and rheological measurements.
链接：http://onlinelibrary.wiley.com/doi/10.1002/marc.201600069/abstract