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Biaxially oriented films prepared from poly(vinyl chloride)/poly(methyl methacrylate co imide) blends
Author(s) -
Kotnis Mahesh A.,
Spruiell Joseph E.
Publication year - 1989
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760292107
Subject(s) - materials science , imide , glass transition , vinyl chloride , methyl methacrylate , composite material , polymer chemistry , poly(methyl methacrylate) , polyvinyl chloride , polymer , polymer blend , copolymer
A study was conducted of blends of poly(vinyl chloride) (PVC) with a poly(methyl methacrylate co imide). The latter polymer was found to be miscible in PVC and to raise the glass transition temperature of the blend. Blends of all compositions could be oriented, but the processing temperature increased in proportion with T g . For a given blend composition, orientation increased with increasing stretch ratio and strain rate and with decreasing stretch temperature. Increasing copolyimide content and increasing orientation generally lead to improved mechanical properties, though the blends containing high levels of copolyimide exhibited low ductilities.