Summary
Temperature sensitive polymers with pendant dimethyl maleinimide side groups were prepared by the copolymerization of N-isopropylacrylamide (NIPAAm) with varying amounts of a functional N-substituted acrylamide (2-(dimethyl maleinimido)-N-ethyl-acrylamide, DMIAAm). The polymers were characterized by 1H-NMR, IR, DSC and TGA. Their relative reactivity ratios have been determined. Aqueous solutions of the copolymers showed lower critical solution temperature behaviour (LCST). The phase transition temperatures of the aqueous solutions of these copolymers decreased with increasing comonomer content and disappeared at DMIAAm contents at or above 15.9 mol-%.
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Received: 13 September 1999/Accepted: 7 March 2000
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Kuckling, D., Adler, HJ., Ling, L. et al. Temperature sensitive polymers based on 2-(dimethyl maleinimido)-N-ethyl-acrylamide: Copolymers with N-isopropylacrylamide. Polymer Bulletin 44, 269–276 (2000). https://doi.org/10.1007/s002890050602
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DOI: https://doi.org/10.1007/s002890050602