The influence of melt processing on the spatial organization of polymer chains in a crystallizable diblock copolymer of nylon 6 and PDMS

Crystallized chains of nylon 6 lie parallel to the interfaces of the microphase‐separated morphology of a nylon 6/PDMS diblock copolymer. Orienting the morphology in the melt using plane strain compression enabled the nylon chain direction to be determined through a combination of transmission elect...

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Bibliographic Details
Published in:Journal of applied polymer science 1998-12, Vol.70 (10), p.1985-1990
Main Authors: Mukai, Uchu, Cohen, Robert E., Bellare, Anuj, Albalak, Ramon J.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Inorganic and organomineral polymers
melt processing
nylon 6
Physicochemistry of polymers
polymer chain orientation
Properties and characterization
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Summary:Crystallized chains of nylon 6 lie parallel to the interfaces of the microphase‐separated morphology of a nylon 6/PDMS diblock copolymer. Orienting the morphology in the melt using plane strain compression enabled the nylon chain direction to be determined through a combination of transmission electron microscopy, small‐angle X‐ray scattering and wide‐angle X‐ray scattering pole figure analysis. Processing at temperatures above the nylon 6 melting point serves to orient the microphase‐separated morphology of the melt; the nylon 6 chain orientations are then largely dictated by thermodynamic considerations that apply to chains crystallizing within the confines of a microphase separated melt. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 70: 1985–1990, 1998
ISSN:0021-8995
1097-4628
DOI:10.1002/(SICI)1097-4628(19981205)70:10<1985::AID-APP14>3.0.CO;2-V