| 壳聚糖/纳米SiO_2杂化材料的研究 |
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| 引用本文： | 张军丽,王汉雄,曲黎,叶文玉.壳聚糖/纳米SiO_2杂化材料的研究[J].应用化工,2006,35(9):697-699. |
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| 作者姓名： | 张军丽 王汉雄 曲黎 叶文玉 |
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| 作者单位： | 1. 黄淮学院,化学化工系,河南,驻马店,463000
2. 河南大学,化学化工学院,河南,开封,475001 |
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| 摘 要： | 在甲醇和乙酸介质中,通过酸酐与壳聚糖反应,合成了水溶性的N-酰化壳聚糖,并将纳米二氧化硅颗粒与N-酰化壳聚糖水溶液经溶胶-凝胶过程,制备了壳聚糖/纳米S iO2杂化材料。通过傅立叶变换红外光谱、元素分析、扫描电镜等方法对杂化材料进行了表征,采用热重分析对杂化材料的热性能进行研究。扫描电镜分析结果表明,杂化材料为纳米尺度的无机S iO2加强化的片状材料,S iO2颗粒分散在材料中,形成均匀的表面;热重分析结果表明,杂化材料的热性能有较大提高。
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| 关 键 词： | 壳聚糖 N-酰化壳聚糖 纳米SiO2颗粒 杂化材料 |
| 文章编号： | 1671-3206(2006)09-0697-03 |
| 收稿时间： | 2006-06-07 |
| 修稿时间： | 2006年6月7日 |
Study of chitosan/nanosized SiO2 hybrid materials |
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| ZHANG Jun-li,WANG Han-xiong,QU Li,YE Wen-yu.Study of chitosan/nanosized SiO2 hybrid materials[J].Applied chemical industry,2006,35(9):697-699. |
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| Authors: | ZHANG Jun-li WANG Han-xiong QU Li YE Wen-yu |
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| Affiliation: | 1. Chemistry and Chemical Engineering Department, Huanghuai College,Zhumadian 463000, China; 2. College of Chemistry and Chemical Engineering,Henan University, Kaifeng 475001, China |
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| Abstract: | In the medium of reaction of CH_3OH and acetic acid (ACOH),water-soluble N-acylchitosan was prepared by the reaction between carboxylic anhydride and chitosan.Then chitosan/nanosized SiO_2 hybrid materials was synthesized by mixed nanosized SiO_2 particles and N-acryl chitosan through sol-gel process.The hybrid materials were characterized with FTIR,elemental analysis and TEM.Silica was dispersed uniformly in chitosan/nanosized silica hybrid sheet material forming uniform surface,which was strengthened by silica particle.The thermal character of the materials was improved,which was detected by TGA and DTG. |
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| Keywords: | chitosan N-acyl chitosan nanosized SiO_2 particles hybrid materials |
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