Synthesis and Characterization of a cross-linkable polylactic acid based resin
Journal article, 2010

A new biobased polyester resin was developed for thermoset composite applications. The resin is potentially inexpensive and can be produced industrially by relatively simple means. The resin consists of star-shaped methacrylated oligomers of lactic acid (LA). LA oligomers were synthesized in a two-step process: in the first step, oligomers of LA were polymerized by direct condensation of LA. In the second step, the oligomers were end-functionalized by methacrylic anhydride. The resin was characterized by differential scanning calorimetry, Raman spectroscopy, NMR, rubber process analyzer, and TOF-SIMS. Tests show that the resin can be crosslinked into a rigid network within a couple of minutes upon thermal initiation.




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Dan Åkesson

University of Borås

M. Skrifvars

University of Borås

J. Seppälä

Aalto University

M. Turunen

JVS-Polymers Ltd.

Anna Martinelli

Chalmers, Applied Physics, Condensed Matter Physics

Aleksandar Matic

Chalmers, Applied Physics, Condensed Matter Physics

Journal of Applied Polymer Science

0021-8995 (ISSN) 1097-4628 (eISSN)

Vol. 115 1 480-486

Subject Categories

Materials Engineering



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