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Investigation of the compatibility for PVC blend by reduced viscometeric method
Author(s) -
Lee WenFu,
Lai ChungChing
Publication year - 1997
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19971024)66:4<761::aid-app17>3.0.co;2-u
Subject(s) - compatibility (geochemistry) , materials science , polymer , copolymer , vinyl chloride , polyvinyl chloride , polymer blend , polymer chemistry , styrene , methyl methacrylate , composite material
A new method is presented to predict the compatibility of a polymer blend. The compatibility of the polymer—polymer pairs containing poly(vinyl chloride) (PVC), poly(glycidyl methacrylate) [poly(GMA)], poly(methyl methacrylate) [poly(MMA)], and poly(styrene) (PS) predicted by the use of the deviation from the additivity law of the slope in the reduced viscosity (η sp /C ) versus polymer concentration ( C ) plot of a binary blend system is the purpose of this article. In addition, the influence of the grafted copolymer (PVC‐ g ‐GMA) on the compatibility of PVC—poly(GMA) pairs is also investigated by this reduced viscosity method and also confirmed by the differential scanning calorimetric technique. The results contrasted to the thermodynamic principle showed that the polymer blends could be considered to be a compatible blend when the deviation values deviated from the additivity law of the slopes in the η sp /C vs. C plot are smaller than 15%. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 66: 761–775, 1997