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A Novel Class of Betaine-Type Polyampholytes with Stimuli-Responsive and Complexing Properties

✍ Scribed by Raushan B. Koizhaiganova; Sarkyt E. Kudaibergenov; Kurt E. Geckeler

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
84 KB
Volume
23
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

Linear and crosslinked betaine‐type polyampholytes based on ethyl 3‐aminocrotonate and unsaturated carboxylic acids have been synthesized by very fast polymerization in bulk and solution. Bulk polymerization occurred exothermically even at room temperature and without adding an initiator. The polyampholytes showed stimuli‐responsive properties with respect to pH, ionic strength, water/organic solvent mixtures, and metal ion complexation.
Temperature profile of the polymerization reaction for an equimolar mixture of CRO and AA with time in the absence of initiator.

magnified imageTemperature profile of the polymerization reaction for an equimolar mixture of CRO and AA with time in the absence of initiator.

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