| 离子液体催化聚乳酸丁醇醇解反应 |
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| 引用本文： | 宋修艳,王辉,张晓静,刘福胜,路家祥.离子液体催化聚乳酸丁醇醇解反应[J].化工学报,2015,66(Z1):187-191. |
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| 作者姓名： | 宋修艳 王辉 张晓静 刘福胜 路家祥 |
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| 作者单位： | 1.青岛科技大学化工学院, 山东 青岛 266042;2.青岛农业大学化学与药学院, 山东 青岛 266109 |
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| 基金项目： | 国家自然科学基金项目，教育部博士点基金项目，山东省高等学校科技计划项目(J14LC12).supported by the National Natural Science Foundation of China，the Doctoral Fund of Ministry of Education，the project of Shandong Province Higher Educational Science and Technology Program |
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| 摘 要： | 以离子液体Bmim]OAc]为反应介质和催化剂, 对聚乳酸 (PLA)丁醇醇解反应进行了研究。考察了反应温度、反应时间、离子液体用量、丁醇(n-butanol)用量对反应结果的影响。得到较佳工艺条件为:反应温度为150℃、反应时间为3 h、m(Bmim]OAc]):m(PLA)=0.2:1、n(n-butanol):n(PLA)=5:1。在上述条件下, PLA醇解反应转化率≥81%, 乳酸正丁酯收率≥70%。采用FT-IR技术对产品的结构进行了表征。 离子液体的回用性能结果表明:Bmim]OAc]重复利用6次后, PLA转化率和乳酸正丁酯收率无明显变化。
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| 关 键 词： | 离子液体 聚乳酸 丁醇醇解 乳酸正丁酯 |
| 收稿时间： | 2014-12-08 |
| 修稿时间： | 2014-12-18 |
Butanolysis of poly(lactic acid) catalyzed by ionic liquids |
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| SONG Xiuyan,WANG Hui,ZHANG Xiaojing,LIU Fusheng,LU Jiaxiang.Butanolysis of poly(lactic acid) catalyzed by ionic liquids[J].Journal of Chemical Industry and Engineering(China),2015,66(Z1):187-191. |
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| Authors: | SONG Xiuyan WANG Hui ZHANG Xiaojing LIU Fusheng LU Jiaxiang |
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| Affiliation: | 1.College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China;2.College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, Shandong, China |
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| Abstract: | The butanolysis of poly(lactic acid) (PLA) was studied using ionic liquid Bmim]OAc] as solvent and catalyst. The effects of reaction temperature, reaction time, ionic liquid dosage and n-butanol dosage were examined. It was indicated that the conversion of PLA was≥81% and the yield of n-butyl lactate was≥70% under the following conditions: reaction temperature 150℃, reaction time 3 h, m(Bmim]OAc]):m(PLA)=0.2:1 and n(n-butanol):n(PLA)=5:1. Reusability of ionic liquid showed that Bmim]OAc] could be reused up to 6 times without change in the conversion of PLA and yield of n-butyl lactate. |
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| Keywords: | ionic liquid poly(lactic acid) butanolysis n-butyl lactate |
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