Phase formation of two-component physical gels

Fumihiko Tanaka and Masahiko Ishida

Physica A: Statistical Mechanics and its Applications, 1994, vol. 204, issue 1, 660-672

Abstract: This paper presents possible phase diagrams of binary polymer mixtures A/B in which mixed networks are formed. To ensure thermal equilibrium of the system, we consider reversible cross-links which are created and destroyed by thermal motion of the chains. On the basis of the lattice-theoretical picture, we derive possible phase diagrams of alternating networks, interpenetrating networks and randomly mixed networks, with special attention on the interference with macroscopic phase separation. It is found that, for all cases, the miscibility gap is substantially reduced in the concentration region where mixed networks are formed. Though experimental data available at present are far from complete, comparison is made wherever possible.

Date: 1994
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:204:y:1994:i:1:p:660-672

DOI: 10.1016/0378-4371(94)90453-7

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