Statistical mechanics of a cross-linked polymer blend
Abstract
We study a blend of two kinds of homopolymers with tendency for segragation. Cross-links between the chains of different kinds do not allow macrophase separation. Instead microphase structure appears. Starting from a microscopic model we derive the effective Hamiltonian and calculate the form of the inverse scattering function and the domain size. The latter is found to be of the order of the mesh size. We show agreement of the results obtained by this microscopic statistical mechanical theory with experimental data and the existing scaling arguments.
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