HOMOGENEOUS SYNTHESIS OF HIGH-AMYLOSE STARCH ACETATES AND THEIR ULTRAFINE FIBERS PREPARED BY ELECTROSPINNING

ZHOU Qiaoping; WU Jin; ZHANG Jun; HE Jiasong; SUN Zhijie; ZHANG Zuoguang

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HOMOGENEOUS SYNTHESIS OF HIGH-AMYLOSE STARCH ACETATES AND THEIR ULTRAFINE FIBERS PREPARED BY ELECTROSPINNING

Research Bulletin | 更新时间：2021-03-19

- HOMOGENEOUS SYNTHESIS OF HIGH-AMYLOSE STARCH ACETATES AND THEIR ULTRAFINE FIBERS PREPARED BY ELECTROSPINNING
- Acta Polymerica Sinica Issue 7, Pages: 685-688(2007)
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- Published：20 July 2007，
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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 (7):685-688(2007)
DOI：

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 (7):685-688(2007) DOI：

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.

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.

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

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