Va. Bershtein et al., SEGMENTAL RELAXATIONS IN COMPLEX POLYMER SYSTEM AS STUDIED BY HIGH-RESOLUTION LASER-INTERFEROMETRIC CREEP RATE SPECTROSCOPY, Journal of non-crystalline solids, 235, 1998, pp. 584-586
Creep rate spectroscopy has a resolution which allows the separation o
f segmental relaxations in a complex polymer system such as a miscible
polyurethane/butyl methacrylate copolymer interpenetrating network. T
he heterogeneity of segmental dynamics within an anomalous glass trans
ition was demonstrated as the discrete manifestation of a few predicte
d types of motions, cooperative and non-cooperative. (C) 1998 Elsevier
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