Thermal micro- and macro-expansion of amorphous polymers

The linear thermal expansion of a number of non-oriented amorphous polymers (PMMA, PS, PVA, and elastonite) is measured at 173–373 K by a general (macroscopic) dilatometric method, and also by a microscopic method at the molecular level, i.e. large angle X-ray diffraction, from the angular displacem...

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Bibliographic Details
Published in:Polymer science USSR 1988, Vol.30 (11), p.2556-2561
Main Authors: Slutsker, A.I., Filippov, V.E.
Format: Article
Language:English
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Summary:The linear thermal expansion of a number of non-oriented amorphous polymers (PMMA, PS, PVA, and elastonite) is measured at 173–373 K by a general (macroscopic) dilatometric method, and also by a microscopic method at the molecular level, i.e. large angle X-ray diffraction, from the angular displacement of a halo (microscopic expansion). The microscopic expansion is several orders of magnitude greater than the macroscopic expansion.
ISSN:0032-3950
1878-268X
DOI:10.1016/0032-3950(88)90026-3