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Facile synthesis and self-assembly of novel multihetero-arms hyperbranched polyglycerol
作者:Li Zhou, Chao Gao, Weijian Xu
关键字:Hyperbranched polymer,Self-assembly,Polyglycerol,Multihetero-arm
论文来源:期刊
具体来源:Chem J Chinese U 2011, 32, 170-174
发表时间:2011年
A novel multihetero-arms hyperbranched polyglycerol(HPG-h-arm) was synthesized through three facile steps: synthesis of HPG by anionic ring-opening polymerization of glycidol, grafting hydrophobic palmitic acid(PA) chains and reactive Br by N,N''-dicyclohexylcarbodiimide(DCC) coupling reaction, and grafting hydrophilic poly [2-(dimethyl amino) ethyl methacrylate] (PDMAEMA) chains by atom transfer radical polymerization(ATRP). The structure of the HPG-h-arm was characterized by GPC, MR and (1)H NMR. The self-assembled behavior of the HPG-h-arm in different solvents were detected by DLS, and the morphology of the assembly was examined by TEM and AFM. The results show that the HPG-h-arm could form spherical micelles with different sizes in different solvents.