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| 2-羟丙基三甲基氯化铵壳聚糖的制备及其表征 | |
| 引用本文： | 蔡照胜,王锦堂,杨春生,许琦,严金龙.2-羟丙基三甲基氯化铵壳聚糖的制备及其表征[J].精细化工,2004,21(9):655-657,673. |
| 作者姓名： | 蔡照胜 王锦堂 杨春生 许琦 严金龙 |
| 作者单位： | 1. 南京工业大学,理学院,江苏,南京,210009;盐城工学院,化工系,江苏,盐城,224003 2. 南京工业大学,理学院,江苏,南京,210009 3. 盐城工学院,化工系,江苏,盐城,224003 |
| 基金项目： | 江苏省环保基金资助项目(2002031) |
| 摘 要： | 以脱乙酰度为90%的壳聚糖(CTS)为原料,异丙醇为溶剂,w(NaOH)=40 0%的水溶液为催化剂,3 氯 2 羟丙基三甲基氯化铵(CTA)为改性剂,在m(NaOH)∶m(CTS)=1 0∶1 0,m(CTA)∶m(CTS)=4 0∶1 0,反应温度65 0℃下制备了2 羟丙基三甲基氯化铵壳聚糖(HTCC)。实验结果表明,在反应时间达到或超过9 0h时,得到的HTCC产品的接枝度超过90 0%,在pH=6 7～7 0的水中可完全溶解形成w(HTCC)=3 0%的溶液。IR和1HNMR的结果表明,接枝反应主要发生在CTS的氨基上。 |
| 关 键 词： | 壳聚糖(CTS) 3-氯-2-羟丙基三甲基氯化铵(CTA) 接枝改性 季铵盐接枝壳聚糖 2-羟丙基三甲基氯化铵壳聚糖(HTCC) 接枝度 |
| 文章编号： | 1003-5214(2004)09-0655-01 |
Preparation and Characterization of Chitosan Grafted with CTA |
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| CAI Zhao-sheng.Preparation and Characterization of Chitosan Grafted with CTA[J].Fine Chemicals,2004,21(9):655-657,673. | |
| Authors: | CAI Zhao-sheng |
| Affiliation: | CAI Zhao-sheng~ |
| Abstract: | 2-Hydroxypropyltrimethylammonium chloride chitosan(HTCC) was prepared using chitosan(CTS) with degree of deacetylation of 90.0% as raw material,2-propanol as solvent,40.0% aqueous NaOH solution as catalyst and 3-chloro-2-hydroxypropyltrimethylammonium chloride(CTA) as grafting agent,when m(NaOH)∶m(CTS)=1.0∶1.0,m(CTA)∶m(CTS)=4.0∶1.0,and reaction temperature was 65.0 ℃.The graft rate of product could excess 90.0% when reaction time was up to or more than 9.0 h.The product could dissolve in distilled water of pH 6.7～7.0 to form a w(HTCC)=3.0% aqueous solution.IR and~1HNMR showed that the graft reaction happened mainly on the amino group of CTS. |
| Keywords: | chitosan 3-chloro-2-hydroxypropyltrimethylammonium chloride graft modification quaternary ammonium salt grafted chitosan 2-hydroxypropyltrimethylammonium chloride chitosan graft rate |
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