A smart polymer with a high sensitivity to temperature and humidity based on polyacrylamide hydrogel doped with polyiodide

A smart polymer is developed by in situ fabrication of polyacrylamide hydrogel with polyiodide. The resulting PAM hydrogel doped with polyiodide showed a high sensitivity to temperature and humidity. Its special humidity-response behavior with high responsivity makes the described hydrogel a highly promising material for building temperature- and humidity-control switches.Shenzhen Key Laboratory of Shenzhen Science and Technology Plan [ZDSYS20140509094114164]; Guangdong Talents Project, NSFC [51373075]; National Basic Research Program of China (973 Program) [2015CB856505]; Shenzhen Peacock Program [KQTD2014062714543296]; Shenzhen Science and Technology Research Grant [JCYJ20140509093817690, JCYJ20160331095335232]; Nanshan Innovation Agency Grant [KC2015ZDYF0016A]; Provincial Science and technology project of Guangdong Province [2015B090914002, 2014B090914003]; Natural Science Foundation of Guangdong Province [2014A030313800]; Guangdong Academician Workstation [2013B090400016]; NSERCSCI(E)ARTICLEmenghong@pkusz.edu.cn4711055-11058