J. Phys. II France
Volume 3, Numéro 7, July 1993
Page(s) 1161 - 1168
DOI: 10.1051/jp2:1993183
J. Phys. II France 3 (1993) 1161-1168

Small angle neutron scattering by interpenetrating polymer networks of poly(carbonate-urethane) and polyvinyl pyridine

A. Brulet1, M. Daoud1, P. Zhou2 and H. L. Frisch2

1  Laboratoire Léon Brillouin (C.E.A.-C.N.R.S.), C.E. Saclay, 91191 Gif-sur-Yvette, France
2  State University of New York, Department of Chemistry, Albany, N.Y. 12222, U.S.A.

(Received 25 January 1993, accepted 22 March 1993)

Small-angle neutron scattering experiments by interpenetrating networks of poly(carbonate-urethane) and polyvinyl pyridine reveal that there is some degree of microphase separation at all composition at all compositions, possibly, in some compositions, into a bicontinuous phase. The domain size is some undred angströms in the samples with only one one glass transition temperature, and is much smaller than the domain size for samples with two glass temperatures.

05.70F - 61.12E - 61.25H

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