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Molecular weights polymorphic behavior

MeUle, S.V. et al.. Influence of molecular weight and regioregularity on the polymorphic behavior of poly(3-decylthiophenes), Macromolecules 30, 7898-7905, 1997. [Pg.399]

Pan, P., Kai, W, Zhu, B., Dong, T, and Inoue, Y. (2007) Polymorphous crystallization and multiple melting behavior of poly(L-lactide) molecular weight dependence. Macromolecules, 40, 6898-6905,... [Pg.126]

Isotactic polypropylene can crystallize in different forms (modifications), such as a, P, y, and smectic, which differ by their unit cell type and thus by their packing density." The most common are the a-form and the y-form. The a-modification is the preferred crystalline form of polypropylenes synthesized by conventional Ziegler-Natta catalysts." High molecular weight isotactic polypropylenes prepared by metallocene catalysts preferentially crystallize in the y-form. The different polymorphic behaviors of metallocene and Ziegler-Natta samples can be related to the... [Pg.235]

Polymorphic transitions are also observed in polymers as a result of a crystal-crystal transition. This behavior is similar to that observed in low molecular weight systems. A classical, and important, example is found in linear polyethylene. A new... [Pg.321]

Medellm-Rodriguez FJ, Larios-L6pez L, Zapata-Espinoza A, Davalos-Montoya O, Phillips PJ, Lin IS. Melting behavior of polymorphics molecular weight dependence and stepUke mechanisms in nylon-6. Macromolecules 2004 37 1799-809. [Pg.311]

See other pages where Molecular weights polymorphic behavior is mentioned: [Pg.668]    [Pg.103]    [Pg.539]    [Pg.282]    [Pg.260]    [Pg.236]    [Pg.371]    [Pg.169]    [Pg.3]    [Pg.196]    [Pg.93]    [Pg.223]    [Pg.355]    [Pg.2155]    [Pg.260]    [Pg.525]   
See also in sourсe #XX -- [ Pg.303 ]



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