Thermoreversible crosslinking of polyelectrolyte chains

A V Ermoshkin¹, A N Kudlay, M Olvera de la Cruz

¹Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208-3108, USA.

|July 23, 2004

Abstract:

Thermoreversible crosslinking of polyelectrolyte chains via short-range attractions such as hydrogen bonding induced by uncharged or charged particles is studied within the Flory model of ideal association. Electrostatic interactions between the charges at different linking fractions are taken into account by using a generalized random phase approximation approach which includes the network connectivity. We find that at certain concentration of linking agents an infinitely large polymer network is formed. We calculate the structural gelation lines for linkers of different charges and functionalities.

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Abstract:

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