Microwave-assisted Polymerization of D,L-Lactide with Stannous Octanoate as Catalyst |
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| Authors: | Li Jian LIU Chao ZHANG Li Qiong LIAO Xu Li WANG Ren Xi ZHUO |
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| Affiliation: | Li Jian LIU* Chao ZHANG,Li Qiong LIAO,Xu Li WANG,Ren Xi ZHUO Department of Polymer Science,College of Chemistry and Molecular Science,Wuhan University The Research Laboratory of SEDC of Biomedical Polymer Materials at Wuhan University,Wuhan 430072 |
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| Abstract: | Poly (lactic acid) (PLA) was synthesized by microwave-assisted ring-opening poly- merization of D, L-lactide with stannous octanoate (SnOct2) as catalyst. Its weight-average molar mass (Mw) ranged from 39000 to 67000 and the polydispersity index from 1.3 to 1.7. The polymerization rate was much faster than that of the conventional thermal polymerization. A degradation of newly formed PLA in reaction mixture by microwave irradiation was observed. |
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| Keywords: | Microwave-assisted ring-opening polymerization Poly(D L-lactic acid). |
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