Thermo-responsive poly(N-isopropylacrylamide) gel containing polymeric surfactant poly(2-(methacryloyloxyl)decylphosphate): correlation between rapid collapsing characters and micelles of polymeric surfactant.
This paper deals with a thermo-responsive poly(N-isopropylacrylamide) (NIPA) gel containing a polymeric surfactant poly(2-(methacryloyloxyl)decylphosphate) (PMDP) which shows rapid volume change above phase transition temperature at ca. 34 degrees C. Based on the measurements of dye-solubilization, it was suggested that intra-molecular micelles of the polymeric surfactant PMDP are inside NIPA gel-network. It is concluded that the intra-molecular micelles of polymeric surfactant involving NIPA chains may play crucial role in the rapid collapse of the NIPA-PMDP gel at the phase transition temperature.
Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Kofu, Japan. yanhu@yamanashi.ac.jp
Hu
H
Yan
Kaoru
K
Tsujii
D000178:Acrylamides / Q000737:chemistry*; D000180:Acrylic Resins; D005782:Gels / Q000737:chemistry*; D008689:Methacrylates / Q000737:chemistry*; D008823:Micelles; D010755:Organophosphates; D044367:Phase Transition; D010710:Phosphates / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D012995:Solubility; D012996:Solutions; D013501:Surface-Active Agents / Q000737:chemistry*; D013696:Temperature; D044366:Transition Temperature
D000178:Acrylamides; D000180:Acrylic Resins; D005782:Gels; D008689:Methacrylates; D008823:Micelles; D010755:Organophosphates; D010710:Phosphates; D011108:Polymers; D012996:Solutions; D013501:Surface-Active Agents; C531554:poly(2-(methacryloyloxyl)decylphosphate); C052970:poly-N-isopropylacrylamide