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Evaluation of orientation in vinyl alcohol-ethylene copolymer films by means of infrared dichroism and birefringence

✍ Scribed by María L. Cerrada; José M. Pereña

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 171 KB
Volume: 64
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19970425)64:4<791::aid-app18>3.0.co;2-x

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✦ Synopsis

Coupled measurements of birefringence and IR dichroism of drawn films of vinyl alcohol-ethylene copolymers have led to a value of around 46Њ for the angle a between the dipole moment vector of the IR band at 610 cm 01 and the chain axis. The increase of the second moment of the orientation function is well fitted to the pseudoaffine scheme of deformation.

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