Volume phase transition behavior of N-isopropyl acrylamide-N-cyanomethyl acrylamide copolymer gel particles: the effect of crosslinking density

Hyun Seok Choi, Jong Min Kim, Kee Jung Lee, Young Chan Bae

Research output: Contribution to journalArticle

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We prepared submicron-sized N-isopropyl acrylamide (NIPA)-N-cyanomethyl acrylamide (NCMA) copolymer gel particles by precipitation polymerization. Volume phase transition behaviors of gel particles with various compositions and crosslinking density were observed by using photon correlation spectroscopy (PCS). The experimental data showed that both the volume transition temperature and the swelling ratio of copolymer gel particles were varied with the mole ratio of NCMA and NIPA. We compared the swelling behaviors of given systems with the thermodynamic model based on the extended Flory-Huggins theory.

Original languageEnglish
Pages (from-to)1091-1099
Number of pages9
JournalJournal of Applied Polymer Science
Issue number8
Publication statusPublished - 1999 Jan 1


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