Influence of charge distribution on the conformation of neutral polyampholytes |
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Authors: | S Neyret A Baudouin J M Corpart F Candau |
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Institution: | (1) Institut Charles Sadron (CRM-EAHP), CNRS-ULP Strasbourg, 6, rue Boussingault, 67083 Strasbourg Cédex, France;(2) Present address: Centre d’Applications de Lavallois, ATOCHEM, 95, Rue Danton, 92300 Levallois-Perret |
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Abstract: | Summary Two polyampholyte copolymers based on sodium-2-acrylamido-2-methylsulfonate (NaAMPS) and methacryloyloxyethyltrimethylammonium
chloride (MADQUAT) have been prepared either in homogeneous solution or by an inverse microemulsion polymerization technique.
The copolymer microstructure was shown to depend on the method of preparation. The microemulsion polymerization yields copolymers
with a monomer sequence distribution not far from random while those obtained by polymerization in solution have a strong
tendency to alternation. The aqueous-solution properties of the two samples have been investigated by viscometry. The results
show that the charge distribution along the copolymer chain affects considerably its conformation, in good agreement with
recent theoretical studies.
Paper presented at the I International Conference on Scaling Concepts and Complex Fluids, Copanello, Italy, July 4–8, 1994 |
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Keywords: | Polymer reactions and polymerization |
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