Jh. Ahn et al., PHASE BEHAVIORS IN BLENDS OF POLY(VINYL METHYL-ETHER) AND POLY(STYRENE-CO-BUTADIENE), European Polymer Journal, 33(7), 1997, pp. 1113-1116
The dependence of miscibility on temperature for blends of poly(vinyl
methyl ether) (PVME) and styrene-butadiene random copolymer (SBR) was
studied. The binary interaction energy densities of the blends could b
e evaluated from the observed cloud point curves. With a simple approa
ch based on the mean-field theory for blends of a homopolymer with a r
andom copolymer, the miscibility boundary could be determined as a fun
ction of composition of the copolymer. The predicted miscibility regio
n for the given polymer pairs was compatible with the experimental res
ults. (C) 1997 Elsevier Science Ltd.