| 초록 |
Ionogels are physically or chemically crosslinked polymer hosting ionic liquid (IL) in its network. Here, we prepared Poly(N-isopropylacrylamide) (PNIPAm) ionogels which are chemically stable, ionic conductive and temperature responsive by showing positive volume phase transition upon increase of temperature. PNIPAm ionogels volume phase transition temperature is occurred at high temperature, which limiting its real-life application. By modifying the ionogel structure with solvatophilic comonomer, we managed to bring down the transition temperature, making it more possible to be applied on real-life applications. Moreover, the copolymerized PNIPAm ionogels showed narrower volume transition and larger swelling ratio. We also observed kinetics of swelling and deswelling of PNIPAm ionogels as temperature jump, exposing gradual swelling and deswelling kinetics as effect of polymer network and IL molecules interaction. |
