EVIDENCE FOR CHAIN SHRINKAGE IN BINARY POLYMER BLENDS - LIGHT-SCATTERING EXPERIMENTS AND THEORY

Authors
THEOBALD W SANSPENNINCKX A MEIER G VILGIS TA
Citation
W. Theobald et al., EVIDENCE FOR CHAIN SHRINKAGE IN BINARY POLYMER BLENDS - LIGHT-SCATTERING EXPERIMENTS AND THEORY, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 55(5), 1997, pp. 5723-5730
Citations number
33
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
55
Issue
5
Year of publication
1997
Part
B
Pages
5723 - 5730
Database
ISI
SICI code
1063-651X(1997)55:5<5723:EFCSIB>2.0.ZU;2-7
Abstract
We report light-scattering experiments on the compatible binary polyme r blend poly(ethylmethylsiloxane) PEMS (N= 223) and poly(dimethylsilox ane) PDMS (N= 325) with phi(C,PEMS)= 0.456 in the one phase region. Fr om the k dependence of the structure factor we obtain the effective se gment length a(eff)(2) for temperatures larger than the Ginzburg tempe rature, which shows a shrinkage if we approach the critical point in a ccordance with theoretical predictions.