| Synthesis of high molecular weight polylactic acid from aqueous lactic acid co-catalyzed by tin（Ⅱ）chloride dihydrate and succinic anhydride |
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| 引用本文： | LEI Ziqiang BAI Yanbin WANG Shoufeng. Synthesis of high molecular weight polylactic acid from aqueous lactic acid co-catalyzed by tin（Ⅱ）chloride dihydrate and succinic anhydride[J]. 科学通报(英文版), 2005, 50(20): 2390-2392. DOI: 10.1360/982005-1208 |
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| 作者姓名： | LEI Ziqiang BAI Yanbin WANG Shoufeng |
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| 作者单位： | Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China |
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| 摘 要： | Polylactic acid was synthesized from commercial available cheap aqueous lactic acid （85%-90% w/w） using succinic anhydride and SnCl2·2H2O as catalyst in the absence of organic solvents. As a result, polylactic acid with a molecular weight of 60000 was prepared in 10 h. The new procedure is much simple, cheap and outstanding in that the start material is aqueous lactic acid; the catalytic system is environmentally benign.
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| 关 键 词： | 聚合物 催化剂 有机溶剂 分子结构 乳酸 |
| 收稿时间： | 2005-07-28 |
| 修稿时间： | 2005-07-282005-08-26 |
Synthesis of high molecular weight polylactic acid from aqueous lactic acid co-catalyzed by tin(II)chloride dihydrate and succinic anhydride |
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| Ziqiang?LeiEmail author,Yanbin?Bai,Shoufeng?Wang. Synthesis of high molecular weight polylactic acid from aqueous lactic acid co-catalyzed by tin(II)chloride dihydrate and succinic anhydride[J]. Chinese science bulletin, 2005, 50(20): 2390-2392. DOI: 10.1360/982005-1208 |
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| Authors: | Ziqiang?Lei author-information" > author-information__contact u-icon-before" > mailto:leizq@nwnu.edu.cn" title=" leizq@nwnu.edu.cn" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Yanbin?Bai,Shoufeng?Wang |
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| Affiliation: | LEI Ziqiang, BAI Yanbin & WANG Shoufeng Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China |
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| Abstract: | Polylactic acid was synthesized from commercial available cheap aqueous lactic acid (85%–90% w/w) using succinic anhydride and SnCl2.2H2O as catalyst in the absence of organic solvents. As a result, polylactic acid with a molecular weight of 60000 was prepared in 10 h. The new procedure is much simple, cheap and outstanding in that the start material is aqueous lactic acid; the catalytic system is environmentally benign. |
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| Keywords: | polylactic acid bulk polymerization catalytic polymerization. |
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