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 H-1 NMR spectroscopy reveals the presence of both linear and cyclic polymer chains.
机构:
China Univ Geosci, Fac Mat Sci & Chem, Engn Res Ctr Nanogeomat, Minist Educ, Wuhan 430074, Hubei, Peoples R ChinaChina Univ Geosci, Fac Mat Sci & Chem, Engn Res Ctr Nanogeomat, Minist Educ, Wuhan 430074, Hubei, Peoples R China
Dai, Yu
Zhang, Xiaojin
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China Univ Geosci, Fac Mat Sci & Chem, Engn Res Ctr Nanogeomat, Minist Educ, Wuhan 430074, Hubei, Peoples R ChinaChina Univ Geosci, Fac Mat Sci & Chem, Engn Res Ctr Nanogeomat, Minist Educ, Wuhan 430074, Hubei, Peoples R China
机构:
China Univ Geosci, Fac Mat Sci & Chem, Engn Res Ctr Nanogeomat, Minist Educ, Wuhan 430074, Hubei, Peoples R ChinaChina Univ Geosci, Fac Mat Sci & Chem, Engn Res Ctr Nanogeomat, Minist Educ, Wuhan 430074, Hubei, Peoples R China
Dai, Yu
Zhang, Xiaojin
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h-index: 0
机构:
China Univ Geosci, Fac Mat Sci & Chem, Engn Res Ctr Nanogeomat, Minist Educ, Wuhan 430074, Hubei, Peoples R ChinaChina Univ Geosci, Fac Mat Sci & Chem, Engn Res Ctr Nanogeomat, Minist Educ, Wuhan 430074, Hubei, Peoples R China