PHASE-SEPARATION AND MICROSCOPIC HOMOGENIZATION OF POLYSTYRENE POLY(VINYL-METHYL-ETHER) BY SOLID-STATE H-2 NMR/

Authors
TEZUKA A TAKEGOSHI K HIKICHI K
Citation
A. Tezuka et al., PHASE-SEPARATION AND MICROSCOPIC HOMOGENIZATION OF POLYSTYRENE POLY(VINYL-METHYL-ETHER) BY SOLID-STATE H-2 NMR/, Journal of molecular structure, 355(1), 1995, pp. 9-13
Citations number
8
Categorie Soggetti
Chemistry Physical
Journal title
Journal of molecular structure → ACNP
ISSN journal
00222860
Volume
355
Issue
1
Year of publication
1995
Pages
9 - 13
Database
ISI
SICI code
0022-2860(1995)355:1<9:PAMHOP>2.0.ZU;2-J
Abstract
The time dependence of the H-2 NMR spectra of a polystyrene/poly(vinyl methyl ether) blend in the course of phase separation is studied. It is found that the two processes, fast and slow, are involved in phase separation. The fast process is ascribed to the spinodal decomposition and the slow process is interpreted in terms of the homogenization of microheterogeneity in the phase-separated domains.