Rapid swelling/collapsing behavior of thermoresponsive poly(N- isopropylacrylamide) gel containing poly(2-(methacryloyloxy)decyl phosphate) surfactant

Abstract

(Figure Presented) Pump up the volume: Poly(N-isopropylacrylamide) gel containing poly(2-(methacryloyloxy)decyl phosphate) surfactant (NIPA-PMDP gel) shows a rapid reversible volume decrease above its phase-transition temperature. The gel also undergoes an abrupt volume change on laser irradiation, which results in expulsion of a stream of water (see pictures). The gel can be used in fluid control systems, such as drug delivery. © 2005 Wiley-VCH Verlag GmbH & Co. KGaA.