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Modification of chlorinated poly(vinyl chloride) by blending with epoxidized polybutadiene
Author(s) -
Sotiropoulou Dionissia D.,
Gravalos Kostas G.,
Kalfoglou Nikos K.
Publication year - 1992
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.1992.070450208
Subject(s) - chlorinated polyvinyl chloride , polybutadiene , materials science , ultimate tensile strength , polymer chemistry , vinyl chloride , polyvinyl chloride , composite material , polymer , copolymer
The compatibility of epoxidized poly( cis ‐1,4‐butadiene) (EPB) with chlorinated polyvinylchloride (CPVC) was investigated. Blends studied covered the complete composition range using EPB at two degrees of epoxidation: 20 and 43 mol % oxirane units. Tensile properties of EPB (63)/CPVC were also studied at the 50/50 composition. Dynamic mechanical analysis (DMA) showed that both sets of blends were miscible at the segmental level except for the rich CPVC compositions. All blends showed good tensile properties. even those where DMA indicated phase separation. This may be attributed to strong segmental interactions of the donnor‐acceptor type between the oxirane and acidic‐hydrogen‐containing groups of these complementary dissimilar blend partners.