| Rare Earth Complex Initiated Ring-Opening Polymerization of 2,2-Dimethyltrimethylene Carbonate |
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| 引用本文： | Jun LING,Yi Feng ZHANG*,Zhi Quan SHEN Institute of Polymer Science,Zhejiang University,Hangzhou 310027. Rare Earth Complex Initiated Ring-Opening Polymerization of 2,2-Dimethyltrimethylene Carbonate[J]. 中国化学快报, 2001, 0(1) |
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| 作者姓名： | Jun LING Yi Feng ZHANG* Zhi Quan SHEN Institute of Polymer Science Zhejiang University Hangzhou 310027 |
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| 作者单位： | Jun LING，Yi Feng ZHANG*，Zhi Quan SHEN Institute of Polymer Science，Zhejiang University，Hangzhou 310027 |
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| 摘 要： | Aliphatic polycarbonate is a series of useful biodegradable materials attracting more interests recently. Poly(2,2-dimethyltrimethylene carbonate) (polyDTC) has been studied for a long time. Polymerization of DTC can be catalyzed by alkyl metals1, trifluoromethanesulfonic acid and its esters2, alcohol/methylaluminum diphenolate system3 and etc. Herein tris(2,6-di-tert-butyl-4-methylphenoxo) lanthanides (Ln(OAr)3, Ln=La, Nd) are firstly applied to initiate the polymerization of DTC. Ln(O…
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Rare Earth Complex Initiated Ring-Opening Polymerization of 2,2-Dimethyltrimethylene Carbonate |
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| Jun LING,Yi Feng ZHANG,Zhi Quan SHEN Institute of Polymer Science,Zhejiang University,Hangzhou. Rare Earth Complex Initiated Ring-Opening Polymerization of 2,2-Dimethyltrimethylene Carbonate[J]. Chinese Chemical Letters, 2001, 0(1) |
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| Authors: | Jun LING Yi Feng ZHANG Zhi Quan SHEN Institute of Polymer Science Zhejiang University Hangzhou |
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| Affiliation: | Jun LING,Yi Feng ZHANG*,Zhi Quan SHEN Institute of Polymer Science,Zhejiang University,Hangzhou 310027 |
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| Abstract: | The ring opening polymerization of 2,2-dimethyltrimethylene carbonate (DTC) initiated by single component of tris(2,6-di-tert-butyl-4-methylphenoxo) lanthanide (Ln(OAr)3) is reported. The initiators are highly active to the polymerization and give high molecular weight polymers. 1HNMR spectra and DSC measurement suggest the polymerization is free of decarboxylation. Mechanism study shows that the monomer insertion is via the break of acyl-oxygen bond of DTC. |
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| Keywords: | Tris(2 6-di-tert-butyl-4-methylphenoxo) lanthanide 2 2-dimethyltrimethylene carbonate ring-opening polymerizatid |
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