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Crystallization behaviour of syndiotactic poly-1,2(4-methyl-1,3-pentadiene)

✍ Scribed by E. Petrillo; R. Russo; P. Longo; V. Vittoria

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 412 KB
Volume: 38
Category: Article
ISSN: 0032-3861
DOI: 10.1016/s0032-3861(96)00943-3

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✦ Synopsis

Different crystallization conditions were investigated for syndiotactic poly-l,2-(4-methyl-l,3-pentadiene) (P4MPD). The thermal crystallization is a slow process. At 60°C long times are needed to induce the structural rearrangements. Much shorter times are necessary for oriented samples, so that strain-induced crystallization occurs in a few hours. Solvent-induced crystallization produces a crystalline phase having small and poorly ordered crystallites. The crystallization process enhances the properties of the polymer, increasing both the modulus and the strength.

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