Different crystallization conditions were investigated for syndiotactic poly-1,2-(4-methyl-1,3-pentadiene) (P4MPD). The thermal crystallization is a slow process. At 60 degrees 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. (C) 1997 Elsevier Science Ltd.
Crystallization behaviour of syndiotactic poly-1,2(4-methyl-1,3-pentadiene)
LONGO, Pasquale;VITTORIA, Vittoria
1997-01-01
Abstract
Different crystallization conditions were investigated for syndiotactic poly-1,2-(4-methyl-1,3-pentadiene) (P4MPD). The thermal crystallization is a slow process. At 60 degrees 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. (C) 1997 Elsevier Science Ltd.File in questo prodotto:
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