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Miscible blends of poly(styrene‐co‐allyl alcohol) with poly‐ϵ‐caprolactone
Author(s) -
Barnum R. S.,
Goh S. H.,
Paul D. R.,
Barlow J. W.
Publication year - 1981
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/app.1981.070261136
Subject(s) - melting point depression , copolymer , styrene , materials science , polymer chemistry , caprolactone , glass transition , miscibility , alcohol , allyl alcohol , vinyl alcohol , melting point , flory–huggins solution theory , chemical engineering , organic chemistry , chemistry , catalysis , composite material , polymer , engineering
Based on the single, composition‐dependent glass transition criterion, poly‐ϵ‐caprolactone (PCL) was found to be miscible with each of four poly(styrene‐co‐allyl alcohol) (SAA) copolymers with hydroxyl contents between 1.3 and 7.7 wt %. Melting point depression of the PCL in the blends was used to evaluate the blend interaction parameter B for each miscible system. The parameter B was found to be negative and to vary with copolymer composition in a way that suggests that an optimum density of alcohol moieties in the copolymer exists for achieving maximum interaction with PCL.