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林产化学与工业 ›› 2011, Vol. 31 ›› Issue (4): 31-35.

• 研究报告 • 上一篇    下一篇

马来酸乙基纤维素的制备与表征

莫亚莉1,3, 陈日清1,2, 王春鹏1,2, 卜洪忠3, 储富祥2   

  1. 1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局 林产化学工程 重点开放性实验室;江苏省生物质能源与材料重点实验室,江苏 南京 210042;2. 中国林业科学研究院 林业新技术研究所,北京 100091;3. 南京工业大学 理学院, 江苏 南京 210009
  • 收稿日期:2011-02-25 修回日期:1900-01-01 出版日期:2011-08-30 发布日期:2011-08-30
  • 通讯作者: 储富祥,研究员,研究方向为胶黏剂及生物基高分子复合材料;E-mail:chufuxiang@caf.ac.cn。

Synthesis and Characterization of Ethyl Cellulose Monoester of Maleic Acid

MO Ya-li1,3, CHEN Ri-qing1,2, WANG Chun-peng1,2, BU Hong-zhong3, CHU Fu-xiang2   

  1. 1. Institute of Chemical Industry of Forest Products,CAF;National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.on Forest Chemical Engineering,SFA;Key Lab.of Biomass Energy and Material,Jiangsu Province, Nanjing 210042, China;2. Institute of New Technology of Forestry,CAF, Beijing 100091, China;3. School of Science, Nanjing University of Technology, Nanjing 210009, China
  • Received:2011-02-25 Revised:1900-01-01 Online:2011-08-30 Published:2011-08-30

摘要: 为提高乙基纤维素的进一步应用,以乙基纤维素为原料,马来酸酐为衍生化试剂,制备了马来酸乙基纤维素,通过红外、核磁、X射线衍射、差示扫描量热(DSC)等手段对其结构及性质进行了表征,研究了反应各因素对产物取代度的影响,确定了马来酸乙基纤维素(ECMA)最佳反应条件为:马来酸酐与乙基纤维素中羟基总量物质的量之比为4∶1,反应时间为 6 h,催化剂无水乙酸钠与马来酸酐物质的量之比为1∶1,反应温度 80 ℃,产物最高取代度(DS)为0.41。此产物不仅可以进行接枝共聚合,还可进行交联反应等。

关键词: 乙基纤维素, 衍生物, 合成, 马来酸乙基纤维素

Abstract: In order to improve the use of ethyl cellulose, ethyl cellulose monoester of maleic acid was synthesized using ethyl cellulose as raw material and maleic anhydride as derivatization reagent. Its structure and properties were measured using Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and so on. According to single factor experimental results, the optimal experimental conditions were as follows: the molar ratio of maleic anhydride to the hydroxyl content of EC 4∶1, reaction time 6 h, the molar ratio of catalyst (anhydrous sodium acetate) to maleic anhydride 1∶1, reaction temperature 80 ℃. The product's degree of substitution (DS) is 0.41.The product can not only be used for graft copolymerization, but also can be used for crosslinking reaction.

Key words: ethyl cellulose, derivatives, synthesis, ethyl cellulose monoester of maleic acid

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