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Synthesis and Characterization of a cross-linkable polylactic acid based resin

Dan Åkesson ; M. Skrifvars ; J. Seppälä ; M. Turunen ; Anna Martinelli (Institutionen för teknisk fysik, Kondenserade materiens fysik) ; Aleksandar Matic (Institutionen för teknisk fysik, Kondenserade materiens fysik)
Journal of Applied Polymer Science (0021-8995). Vol. 115 (2010), p. 480-486.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: thermosets; crosslinking; synthesis; biopolymers; renewable resources

Denna post skapades 2010-01-18. Senast ändrad 2017-10-05.
CPL Pubid: 108236


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Institutionen för teknisk fysik, Kondenserade materiens fysik (1900-2015)



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