한국인쇄학회지 (Journal of the Korean Graphic Arts Communication Society)

한국인쇄학회 (The Korean Graphic Arts Communication Society)
권호 표지

수화겔의 상전이에 관한 연구 : (II)폴리(N-이소프로필아크릴아미드)겔의 용해도

A study on phase transition of Hydrogel: (II)Solubility of N-Isopropylacrylamide Gel

  • 박상보 (부경대학교 공과대학 응용화학공학부) ;
  • 화원조 (부경대학교 공과대학 응용화학공학부)
  • Park, Sang-Bo (Dept. of applied chemical engineering, Pukyong National University) ;
  • Hwa, Won-Jo (Dept. of applied chemical engineering, Pukyong National University)
  • 발행 : 2003.03.01
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초록

To understand the thermoresponsive volume phase transition of an N-isopropyl acrylamide(NIPA) gel on water, the solubility parameter of neutral NIPA gel was determined by swelling the gel with various solvents. Water was found not to be a good solvent for NIPA gel. Equilibrium swelling curves of NIPA gel were respectively obtained by immersing in pure water, ethanol, n-propanol and some mixed solvents. On adding a small amount of alcohols to water, volume phase transition of NIPA gel in water was changed. Phase transition temperature of this gel was decreased with the increase of the carbon number of alcohol.

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