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Molecular orientation in drawn smectic and crystalline isotactic polypropylene

✍ Scribed by F. De Candia; R. Russo; V. Vittoria; P. Iannelli


Publisher
Society for Plastic Engineers
Year
1988
Tongue
English
Weight
713 KB
Volume
28
Category
Article
ISSN
0032-3888

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When isotactic polypropylene is quenched a t 0Β°C from the molten state, a biphasic material, amorphous-smectic, is obtained. The smectic phase has an intermediate order between the amorphous and the crystalline. In this study the intrinsic birefringence of the smectic phase was determined. Tapes wit