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中文摘要: 基于原子转移自由基聚合（ATRP）和十二烷基硫酸钠(SDS) 壳聚糖（CS）复合物（SCC）的位置选择性改性策略，合成了结构可控的壳聚糖-O-聚（寡聚乙二醇甲基丙烯酸甲酯）（CS POEGMA）刷状衍生物。通过在SCC的羟基上引入溴代异丁酸后脱除SDS得到大分子引发剂O 溴化壳聚糖（CS-Br）。用红外光谱（FT-IR）与核磁共振（1H NMR）表征了产物结构。结果表明：改变溴代度（DS）可调节聚（寡聚乙二醇甲基丙烯酸甲酯）（POEGMA）的接枝度，而改变寡聚乙二醇甲基丙烯酸甲酯（OEGMA）与CS Br
Abstract:Chitosan derived brush polymers with well defined chemical structure were synthesized by combining ATRP with sodium dodecyl sulphate chitosan complex (SCC) based regioselective modification strategy. ATRP macromolecular initiator, O-bromobutyrated CS (CS-Br), was conveniently prepared by grafting bromoisobutyrate onto the hydroxy groups of SCC and subsequently removing SDS from the O bromobutyrated SCC. The structure of product was characterized by FT IR and 1H NMR. Results showed that the grafting level of POEGMA could be adjusted by varying the degree of substitution (DS) of bromobutyrate. By changing molar feeding ratio of OEGMA to CS Br, the degree of polymerization of POEGMA could be modulated.
keywords: chitosan ATRP PEG modification polymer brush
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基金项目:国家自然科学基金（20774081）；浙江省教育厅科研项目(Y200804954)
| 作者 | 单位 | |
| 康承军 | 浙江大学高分子科学与工程学系，杭州 310027 | k.ang.0308@163.com |
| 涂克华 | 浙江大学高分子科学与工程学系，杭州 310028 | |
| 王利群 | 浙江大学高分子科学与工程学系，杭州 310029 | |
| 蒋宏亮 | 浙江大学高分子科学与工程学系，杭州 310030 | hljiang@zju.edu.cn |
引用本文：
康承军,涂克华,王利群,蒋宏亮.壳聚糖-O-聚（寡聚乙二醇甲基丙烯酸酯）的原子转移自由基聚合与表征[J].功能高分子学报,2011,24(2):.
KANG Cheng-jun,TU Ke-hua,WANG Li-qun,JIANG Hong-liang.Chitosan-O-Poly(oligo(ethylene glycol) methacrylate)Brush Polymers:ATRP Synthesis and Characterization[J].Journal of Functional Polymers,2011,24(2):.
康承军,涂克华,王利群,蒋宏亮.壳聚糖-O-聚（寡聚乙二醇甲基丙烯酸酯）的原子转移自由基聚合与表征[J].功能高分子学报,2011,24(2):.
KANG Cheng-jun,TU Ke-hua,WANG Li-qun,JIANG Hong-liang.Chitosan-O-Poly(oligo(ethylene glycol) methacrylate)Brush Polymers:ATRP Synthesis and Characterization[J].Journal of Functional Polymers,2011,24(2):.
