Citation: Da Hu YAO, Guang Ji LI. Preliminary Study on Lipase-catalyzed Synthesis of Polyesters Containing L-Malic Acid Units[J]. Chinese Chemical Letters, ;2006, 17(12): 1611-1614. shu

Preliminary Study on Lipase-catalyzed Synthesis of Polyesters Containing L-Malic Acid Units

Da Hu YAO ,
Guang Ji LI

College of Materials Science and Engineer, South China University of Technology, Guangzhou 510640

Received Date: 14 September 2006

Terpolymer of 1, 8-octanediol, adipic acid, and L-malic acid was synthesized via a lipase-catalyzed direct polycondensation. The products were characterized by GPC and ¹H NMR.The results indicated that the molecular weight of the prepared polymers decreased with increasing L-malic acid content in the monomer feed ratio, and that change in the L-malic acid content from 0to 20 mol% did not remarkably influenced on the molecular weight distribution M_w/M_n of the prepared samples. The ¹H NMR spectra of the obtained copolymer samples showed that hydroxyl groups of L-malic acid did not take part in the polymerization reaction.
- L-Malic acid,
- polycondensation,
- lipase,
- polyester
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