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Synfacts 2009(1): 0033-0033  
DOI: 10.1055/s-0028-1087270
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

A Bifunctional Monomer for Toughening Polylactide

Contributor(s): Timothy M. Swager, Fei Wang
F. Jing, M. A. Hillmyer*
University of Minnesota, Minneapolis, USA
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Publikationsdatum:
18. Dezember 2008 (online)

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Significance

Reported is a bifunctional molecule that can be used to enhance the mechanical properties of polylactide. It has a norbornene group and a lactide group, which can undergo ring-opening metathesis polymerization (ROMP) and ring-opening polymerization (ROP), respectively. As an example, a polylactide-polybutadiene copolymer synthesized with this ”adduct" had a 65% elongation at its break point (5% for common polylactides) and a tensile toughness of 16 MJm-³ (2 MJm-³ for common polylactides).