第 49 卷第 2 期 | | Vol. 49 No. 2 | 2019 年 4 月 | Apr 2019 |
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所属栏目:功能材料
木质素马来酸酯的制备研究 |
舒 友1,2,3,赵鑫鹏1,3,苏胜培1,3*
(1. 湖南师范大学 化学化工学院,资源精细化与先进材料重点实验室,长沙 410071;2. 怀化学院,聚乙烯醇纤维材料制备技术湖南工程实验室,怀化 418000;3. 石化新材料与资源精细利用国家地方联合工程实验室,长沙 410081) |
摘 要:以碱木质素和马来酸酐为原料,在乙二醇二甲醚介质中通过体系回流反应制备马来酸酐改性木质素。利用FTIR确认了产物结构,建立了木质素马来酸酯产物中马来酸含量测定的方法。探索了反应时间、马来酸酐的用量等因素对反应的影响,优化实验条件为:反应温度85℃;反应时间6 h;马来酸酐的用量为木质素的40%。在优化条件下,产物收率为94.9%,木质素马来酸酯产物中马来酸官能团质量为木质素的1.25%。 |
关键词:碱木质素;马来酸酐;资源综合利用;环保 |
中图分类号:TQ328.3 文献标识码:A 文章编号:1009-9212(2019)02-0036-04 |
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Preparation of Lignin Maleic Acid Ester |
SHU You1,2,3, ZHAO Xin-peng1,3, SU Sheng-pei1,3*
(1. Key Lab for Fine Processing of Resources and Advanced Materials of Hunan Province, Hunan Normal University, Changsha 410071, China; 2. Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol Fiber Material, Huaihua University, Huaihua 418000, China; 3. National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Hunan Normal University, Changsha 410081, China) |
Abstract:The lignin maleic acid ester was prepared by refluxing alkali lignin and maleic anhydride in ethylene glycol dimethyl ether. The structure of the product was confirmed by FTIR, and a method for determining the content of maleic acid in lignin maleic acid ester was established. The effects of reaction time and the amount of maleic anhydride on the reaction were explored. The optimum experimental conditions were as followings: the reaction temperature was of 85℃; the reaction time was of 6 h; and the amount of maleic anhydride was of 40% of lignin. Under optimized conditions, the yield was 94.9%, and the contents of maleic acid functional group in lignin maleic ester is 1.25% of lignin. |
Key words:alkali lignin; maleic anhydride; comprehensive utilization of resources; environmental protection |
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基金项目: 石化新材料与资源精细利用国家地方联合工程实验室开放项目(KF201802),湖南省自然科学基金(2019JJ50472),湖南省教育厅科学研究项目(18C0979)。
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作者简介:舒 友(1983-),男,湖南怀化人,讲师,博士研究生,研究方向:高分子复合材料(E-mail:shuyou1122@163.com)。
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联 系 人: 苏胜培, 教授(E-mail : sushengpei@yahoo.com)。
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收稿日期: 2019-03-2
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