THERMAL COMPOSITION FLUCTUATIONS IN BINARY HOMOPOLYMER MIXTURES AS A FUNCTION OF PRESSURE AND TEMPERATURE

Authors
FRIELINGHAUS H SCHWAHN D WILLNER L SPRINGER T
Citation
H. Frielinghaus et al., THERMAL COMPOSITION FLUCTUATIONS IN BINARY HOMOPOLYMER MIXTURES AS A FUNCTION OF PRESSURE AND TEMPERATURE, Physica. B, Condensed matter, 241, 1997, pp. 1022-1024
Citations number
11
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
241
Year of publication
1997
Pages
1022 - 1024
Database
ISI
SICI code
0921-4526(1997)241:<1022:TCFIBH>2.0.ZU;2-1
Abstract
Thermal composition fluctuations were studied by SANS in two d-PB/PS b inary polymer mixtures as a function of temperature and pressure. The difference between both blends is related to the microstructure. The s tructure factor at scattering vector Q = 0 was analyzed by a crossover function from which the critical temperature. the Ginzburg number and the entropic term of the Flory-Huggins interaction parameter were obt ained. Our experiments show that Ci is influenced by the microstructur e and is connected to the packing of the polymers. (C) 1998 Elsevier S cience B.V. All rights reserved.