Effect of planar extension on the structure and mechanical properties of polystyrene-poly(ethylene-co-butylene)-polystyrene triblock copolymers

Two thermoplastic triblock copolymers containing either spherical or cylindrical polystyrene microdomains were pre-oriented through extensional flow. Copolymers with spherical microstructure are body-centred cubic with a [111] orientation along the flow direction, whereas those with cylindrical micr...

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Bibliographic Details
Published in:Polymer (Guilford) 2000-12, Vol.41 (26), p.9239-9247
Main Authors: DANIEL, C, HAMLEY, I. W, MORTENSEN, K
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Mechanical properties
Organic polymers
Physicochemistry of polymers
Properties and characterization
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Summary:Two thermoplastic triblock copolymers containing either spherical or cylindrical polystyrene microdomains were pre-oriented through extensional flow. Copolymers with spherical microstructure are body-centred cubic with a [111] orientation along the flow direction, whereas those with cylindrical microstructure have the cylinder axis aligned along the extensional flow direction. Young's moduli are highly anisotropic. (Original abstract - amended)
ISSN:0032-3861
1873-2291
DOI:10.1016/s0032-3861(00)00308-6