본문 바로가기
  • Home

Thermo- and Acid/base-induced Spectral Switching of a Poly(N-isopropylacrylamide) Copolymer Containing Benzopyran-based D-π-A type Dye Units

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2010, 22(3), pp.181-186
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering

KIM SUNG HOON 1 Byung Chul Ji 1 이은미 1 Seon-Yeong Gwon 1

1경북대학교

Accredited

ABSTRACT

Abstract― A thermoresponsive poly(NIPAM-co-dye) labeled with benzopyran-based D-π-A type dye was prepared by typical radical copolymerization. It can be also constructed a acid/base-induced molecular switch by modulation of intramolecular charge transfer with protonation/deprotonation. The lower critical solution temperature behavior was investigated by means of UV-vis spectroscopy which allows the measurement of the phase transition from 25°C to 45°C in aqueous DMSO solution. The morphology of the internal microstructure of the poly(NIPAM-co-dye) hydrogel was observed by scanning electron microscopy. The reversible switch could be obtained by thermal and acid/base stimuli.

Citation status

* References for papers published after 2022 are currently being built.