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Insight into the Alcohol-Free Ring-Opening Polymerization of TMC Catalyzed by TBD.

ABSTRACT: We report herein a study on the alcohol-free, ring-opening polymerization of trimethylene carbonate (TMC) in THF, catalyzed by 1,5,7-triazabicyclo [4.4.0] ec-5-ene (TBD) with ratios n_TBD/n_TMC ranging between 1/20 and 1/400. In all cases, the reaction proceeds very rapidly, even faster than in the presence of alcohol initiators, and provides PTMC with molecular weights up to M_n = 34,000 g mol^-1. Characterization of the obtained PTMC samples by MALDI-TOF mass spectrometry, triple detection size exclusion chromatography and ¹H NMR spectroscopy reveals the presence of both linear and cyclic polymer chains.

SUBMITTER: Azemar F

PROVIDER: S-EPMC8156564 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Chiral 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD)-Catalyzed Stereoselective Ring-Opening Polymerization of rac-Lactide: High Reactivity for Isotactic Enriched Polylactides (PLAs).

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