Abstract

The melting and crystallization behavior of random propene/higher linear α-olefin copolymers synthesized with the catalyst system (CH3)2Si(2-methylbenz-[e]indenyl)2ZrCl2/MAO were investigated. According to Flory's theory, the melting point depression is linearly related to the amount of comonomer incorporated irrespective of the nature thereof. The crystallization temperature decreased as well linearly with increasing comonomer content, but was independent of the comonomer type. The comonomer amount had an equally depressant effect on the melting temperature and on the crystallization temperature regardless of whether the crystallization occurred from melt or from dilute solution.

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