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Mean-field and Ising critical behavior of a polymer blend
Phys. Rev. Lett. 58, 1544 – Published 13 April, 1987
DOI: https://doi.org/10.1103/PhysRevLett.58.1544
Abstract
The critical fluctuations of a polymer blend (PVME/d-PS) were investigated by neutron small angle scattering. A mean-field behavior was observed, except in a region very close to the critical temperature where a transition to an Ising-like behavior occurs. The width of this region is T-≃2.4 K for a mixture with average molecular weights of 89 000 (PVME) and 232 000 (d-PS).
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