%0 Conference Paper
%A Benavente Castro, Mª del Rosario
%A Polo-Corpa, M.J.
%A Pérez Tabernero, Ernesto
%A Lorenzo Esteban, Vicente
%B 2nd International Conference on Polyolefin Characterization (ICPC 2008)
%C Valencia, España
%D 2009
%F upm:3867
%I Wiley-VCH Verlag Berlin
%P 0-0
%T Study of the Molecular Weight Influence on the Formation of the ß-polymorph in Metallocenic Isotactic Polypropylene
%U https://oa.upm.es/3867/
%X Isotactic polypropylene, iPP, is one of the most important thermoplastic polymers due to its low manufacturing cost and rather versatile properties. iPP exhibits a very interesting polymorphic behavior depending on the polymerization procedure, thermal history and use of different nucleating agents. Recently, studies on different aspects of the iPP β-polymorph have been published [1, 2]. This paper completes these previous works by analyzing the formation of the β-polymorph starting from samples of metallocenic iPP of different molecular weight. We also consider the effect of the cooling rate in the appearance of β-polymorph in the iPP samples that were studied.