Non-isothermal crystallization process of linear PCL and PHEMA-g-PCL-b-PCL copolymers

MARIO D. NINAGO; VIVINA HANAZUMI; ANDRÉS E. CIOLINO; AUGUSTO G. O. DE FREITAS; PAULO I. R. MURARO; CRISTIANO GIACOMELLI

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Conferencia; BiPoCo 2014 2nd International Conference on Bio-based Polymers and Composites; 2014

In this work, model poly(ε-caprolactone) PCL and block copolymers of PCL and poly(hydroxyethyl methacrylate) (PHEMA) with controlled molar mass were obtained. Non-isothermal crystallization analysis was performed, and the crystallization kinetics was evaluated by using Ozawa´s method. The influence of a PCL linear block copolymerized with a PHEMA grafted chain was studied. Preliminary results indicated that non-isothermal crystallization rates of copolymers gradually decreased, compared to the linear PCL, with the increase of the number of branching points.