| 高直链淀粉乙酸酯的均相合成及其静电纺丝 |
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| 引用本文： | 周巧萍,武进,张军,何嘉松,孙志杰,张佐光.高直链淀粉乙酸酯的均相合成及其静电纺丝[J].高分子学报,2007(7):685-688. |
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| 作者姓名： | 周巧萍 武进 张军 何嘉松 孙志杰 张佐光 |
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| 作者单位： | 北京航空航天大学材料科学与工程学院,北京,100083;中国科学院化学研究所高分子科学与材料联合实验室工程塑料重点实验室,北京,100080;中国科学院化学研究所高分子科学与材料联合实验室工程塑料重点实验室,北京,100080;北京航空航天大学材料科学与工程学院,北京,100083 |
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| 基金项目： | 中国科学院化学研究所分子科学中心创新项目 |
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| 摘 要： | 离子液体1-烯丙基-3-甲基咪唑氯盐(amimCl)可以有效地溶解高直链淀粉.以amimCl为均相反应介质,在无外加催化剂的存在下一步合成了取代度范围较宽的高直链淀粉乙酸酯.考察了反应时间和酰化试剂用量对酰化程度的影响.不同取代度的酰化淀粉在水、丙酮和DMAc等溶剂中表现出不同的溶解性.进一步对高直链淀粉乙酸酯溶液进行静电纺丝,制备出了由直径在数十至数百纳米、表面光滑、连续的纳米纤维组成的超细纤维多孔膜.
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| 关 键 词： | 高直链淀粉乙酸酯 室温离子液体 均相合成 超细纤维 |
| 修稿时间： | 2006-12-062007-02-09 |
HOMOGENEOUS SYNTHESIS OF HIGH-AMYLOSE STARCH ACETATES AND THEIR ULTRAFINE FIBERS PREPARED BY ELECTROSPINNING |
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| ZHOU Qiaoping,WU Jin,ZHANG Jun,HE Jiasong,SUN Zhijie,ZHANG Zuoguang.HOMOGENEOUS SYNTHESIS OF HIGH-AMYLOSE STARCH ACETATES AND THEIR ULTRAFINE FIBERS PREPARED BY ELECTROSPINNING[J].Acta Polymerica Sinica,2007(7):685-688. |
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| Authors: | ZHOU Qiaoping WU Jin ZHANG Jun HE Jiasong SUN Zhijie ZHANG Zuoguang |
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| Institution: | 1 School of Material Science and Engineering, BeiHang University, Beijing 100083;2 Key Laboratory of Engineering Plastics, Joint Laboratory of Polymer Science and Materials, Institute of Chemistry, Chinese Academy of Scierwes, Beijing 100080 |
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| Abstract: | High-amylose starch can dissolve effectively in a room temperature ionic liquid 1-allyl-3-methylimidazolium chloride (amimCl). By using amimCl as the reaction medium,high-amylose starch acetates with a relatively wide range of degree of substitution (DS) were homogeneously synthesized by a one-step method in the absence of any catalyst.The effects of reaction time and acetic anhydride/anhydroglucose unit (AGU) molar ratio on the DS of starch acetates were investigated.These starch acetates exhibited different solubility in water,acetone and DMAc,depending on the DS value.Finally,the fibrous membranes composing of continuous and smooth fibers with diameters in a range from several tens to several hundreds nanometers were successfully produced via electrospinning of starch acetate solution. |
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| Keywords: | High-amylose starch acetate Room-temperature ionic liquid Homogeneous synthesis Ultra-fine fiber |
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