Cut growth properties of styrene–butadiene copolymers | Zendy

Blow C. M. | Zendy; Whittaker R. E. | Zendy

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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.

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