| 壳聚糖接枝甲基丙烯酸羟乙酯的合成与表征 |
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| 引用本文： | 吴昊,陆婷,朱爱萍.壳聚糖接枝甲基丙烯酸羟乙酯的合成与表征[J].扬州大学学报(自然科学版),2005,8(2):24-27. |
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| 作者姓名： | 吴昊 陆婷 朱爱萍 |
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| 作者单位： | 扬州大学,化学化工学院,江苏,扬州,225002 |
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| 基金项目： | 扬州大学博士科研启动基金资助项目 |
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| 摘 要： | 用硝酸铈铵(CAN)为引发剂,氮气保护下,研究了w=2%醋酸溶液中壳聚糖与甲基丙烯酸羟乙酯(HEMA)的接枝共聚行为.重点探讨了反应温度、反应时间、引发剂浓度和单体浓度对接枝聚合反应的影响,优化得到如下最佳反应条件,硝酸铈铵溶液浓度为0.0180mol.L-1,甲基丙烯酸羟乙酯溶液浓度为0.1690mol.L-1,壳聚糖溶液浓度为0.0617mol.L-1,反应温度为60℃,反应时间为5h,可得到最大接枝率为70.4%.并通过差热分析和红外光谱分析对接枝共聚物进行了表征,从而提供了一种生物相容性的亲水改性壳聚糖的方法.
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| 关 键 词： | 壳聚糖 甲基丙烯酸羟乙酯 硝酸铈铵 接枝共聚 |
| 文章编号： | 1007-824X(2005)02-0024-04 |
| 修稿时间： | 2005年3月3日 |
Synthesis and characterization of chitosan grafted polyhydroxyethylmethacrylate |
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| WU Hao,Lu Ting,ZHU Ai-ping.Synthesis and characterization of chitosan grafted polyhydroxyethylmethacrylate[J].Journal of Yangzhou University(Natural Science Edition),2005,8(2):24-27. |
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| Authors: | WU Hao Lu Ting ZHU Ai-ping |
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| Institution: | WU Hao,LU Ting,ZHU Ai-ping~* |
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| Abstract: | Grafting of hydroxyethylmethacrylate (HEMA) onto chitosan using ceric ammonium nitrate (CAN) as an initiator was studied under nitrogen atmosphere in 2% (MP) acetic solution. The effects of the reaction temperature, reaction time, concentration of initiator and monomer on the polymeric behaviors were discussed. The maximum grafting efficiency about 70.4% was obtained. The optimum conditions are as follows: the concentrations of CAN, HEMA and chitosan are (0.0180,) 0.1690 and 0.0617 molL~(-1), respectively and the reaction time and temperature is 5 h and 60 respectively. The grafted copolymer was characterized by DTA and FT-IR. This study provides a method to prepare the biocompatible and hydrophilic modified chitosan. |
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| Keywords: | chitosan hydroxyethylmethacrylate ceric ammonium nitrate graft copolymerization |
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