Journal of the Society of Materials Science, Japan
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
Viscoelasticity and Birefringence of Polycarbonate Derivatives
Tadashi INOUEKunihiro OSAKIHironobu MORISHITAHiroyuki TAMURAShuji SAKAMOTO
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2003 Volume 52 Issue 3 Pages 314-318

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Abstract

The complex Young's modulus and the complex strain-optical coefficient of two series of polycarbonate derivatives were measured around the glass transition zone to investigate the molecular structure-property relationships. The data were analyzed with the modified stress-optical rule: The complex Young's modulus was separated into two component function, R and G. Main chain flexibility and the intrinsic birefringence were estimated from the R component. It was found that the main flexibility was insensitive to the substitution on phenylene groups or propylene groups while the intrinsic birefringence could be significantly reduced.

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