Abstract
Bulk copolymerization of trimethylene carbonate (TMC) and D,L-lactide (D,L-LA) was conducted at 80°C using rare earth chloride as catalyst. The copolymerization reaction showed an induction period. The effects of reaction time and temperature were examined. The polymerization activity of various rare earth chlorides was in the order: LaCl3>YCl3, PrCl3>NdCl3≥DyCl3. The copolymer was characterized by 1H NMR. The reactivity ratios of TMC and D,L-LA were determined by the Fineman-Ross and Kelen-Tüdös methods.
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Huang, Q., Shen, Z., Zhang, Y. et al. Ring-Opening Copolymerization of Trimethylene Carbonate and D,L-Lactide by Rare Earth Chloride. Polym J 30, 168–170 (1998). https://doi.org/10.1295/polymj.30.168
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DOI: https://doi.org/10.1295/polymj.30.168
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