Article (Scientific journals)
Investigation of polymer miscibility by spectroscopic methods V. Effect of molecular weight and block copolymerization of syndiotactic poly(methyl methacrylate) on its miscibility with poly(vinyl chloride)
Albert, Brigitte; Jérôme, Robert; Teyssié, Philippe et al.
1986In Journal of Polymer Science. Part A, Polymer Chemistry, 24 (10), p. 2577-2589
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Abstract :
[en] Investigated by nonradiative energy transfer (NRET), the state of mixing of PVC and s.PMMA which is on the dimensional scale of a few nanometers is significantly affected by the chain length. When PVC is blended with s.PMMA of increasing molecular weight (MW), the longest chains of s.PMMA are likely to segregate from a homogeneous blend formed by PVC and low‐MW s.PMMA. The phase separation should therefore be of purely entropic origin and strongly dependent on both the relative percentage and the chain length of each component. These results are in qualitative agreement with conclusions previously drawn from DSC and transmission electron microscopy. NRET is a more powerful tool in probing heterogeneities compared to DSC and the thermally stimulated depolarization current method; it provides evidence against the previously suggested model of a 1:1 PVC/s.PMMA aggregate. Copyright © 1986 John Wiley & Sons, Inc.
Disciplines :
Chemistry
Author, co-author :
Albert, Brigitte;  Université de Liège - ULiège
Jérôme, Robert ;  Université de Liège - ULiège > Département de chimie (sciences) > Département de chimie (sciences)
Teyssié, Philippe ;  Université de Liège - ULiège > Relations académiques et scientifiques (Sciences)
Baeyens‐Volant, D.;  University of Brussels, Brussels, Belgium
Language :
English
Title :
Investigation of polymer miscibility by spectroscopic methods V. Effect of molecular weight and block copolymerization of syndiotactic poly(methyl methacrylate) on its miscibility with poly(vinyl chloride)
Publication date :
1986
Journal title :
Journal of Polymer Science. Part A, Polymer Chemistry
ISSN :
0887-624X
eISSN :
1099-0518
Publisher :
John Wiley & Sons, Hoboken, United States - New Jersey
Volume :
24
Issue :
10
Pages :
2577-2589
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 05 January 2020

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