Studies on Copolymeric Hydrogels of N-Vinyl-2-pyrrolidone with 2-Hydroxyethyl Methacrylate

Thomas P. Davis, Malcolm B. Hugling

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Abstract

N-Vinyl-2-pyrrolidone and 2-hydroxyethyl methacrylate in both the absence and the presence of ethylene glycol dimethacrylate have been copolymerized to high conversion by 7-irradiation. The resultant xerogels were swollen to equilibrium in water to yield hydrogels. The effects of monomer composition and concentration of added cross-linking agent on the swelling behavior and mechanical properties of these hydrogels at 294 K were investigated, the latter involving measurements of stress (compression)-strain. The findings were interpreted on the basis of terpolymer compositional drift as predicted by the Q—e scheme. Inhomogeneous cross-linking of the copolymer network was noted particularly at high contents of N-vinyl-2-pyrrolidone.

Original languageEnglish
Pages (from-to)2824-2829
Number of pages6
JournalMacromolecules
Volume22
Issue number6
DOIs
Publication statusPublished - 1 Nov 1989
Externally publishedYes

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