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Cut growth properties of styrene–butadiene copolymers
Author(s) -
Blow C. M.,
Whittaker R. E.
Publication year - 1974
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.1974.070181122
Subject(s) - copolymer , vulcanization , thermoplastic elastomer , styrene , natural rubber , tearing , materials science , styrene butadiene , elastomer , composite material , polymer chemistry , thermoplastic , polymer
The cut growth properties of styrene–butadiene block and random copolymers are considered in terms of the tearing energy theory. It is found that the value of T 0 (the minimum value of tearing energy below which no cut growth takes place in the absence of chemical effects) is far higher for a styrene–butadiene resin copolymer system with a high amount of bound styrene resin than for a conventionally vulcanized SBR elastomer. Similarly, it is shown that the value of T 0 for a butadiene–styrene block copolymer (thermoplastic rubber) is considerably reduced when the material is crosslinked. It is proposed that the value of T 0 is influenced by the hystersial properties of the rubber.