Variation with radiation dose of tensile strength and elongation at break of styrene-butadiene-styrene triblock copolymer

The variation of tensile strength and elongation at break of styrene-butadiene-styrene triblock copolymer containing 34.1, 40.0 and 52.5% styrene have been studied with respect to their morphology and the extent of crosslinking produced by irradiation with 60Co rays. We assume that the existence of...

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Bibliographic Details
Published in:Polymer (Guilford) 1994-01, Vol.35 (15), p.3345-3347
Main Authors: Huai, Yang, You, Jiang, Xiangshan, Li, Zhudi, Zhao, Xinfang, Chen
Format: Article
Language:English
Subjects:
Applied sciences
Crosslinking and degradation
Exact sciences and technology
Physicochemistry of polymers
Polymers and radiations
radiation
tensile strength
triblock copolymer
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Summary:The variation of tensile strength and elongation at break of styrene-butadiene-styrene triblock copolymer containing 34.1, 40.0 and 52.5% styrene have been studied with respect to their morphology and the extent of crosslinking produced by irradiation with 60Co rays. We assume that the existence of microphase separation between polybutadiene (PB) and polystyrene domains and entanglements between PB segments result in the unusual variation of the two characteristics with radiation dose, which is different from that in common elastomers and blends.
ISSN:0032-3861
1873-2291
DOI:10.1016/0032-3861(94)90147-3