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		题名	作者	年代	出处	被引量
	1	Chemoenzymatic synthesis amphiphilic H-shaped copolymer and its self-assembly behavior显示文摘ABA triblock copolymers were synthesized by dihydroxyl-capped PEO initiated enzymatic ring-opening polymerization (eROP) of ε-CL in the presence of biocatalyst Novozyme 435. The chains ended with hydroxyl of block copolymers were modified by the esterification of 2,2-dichloro acetyl chloride (DCAC) to obtain the tetrafunctional macroinitiator,which was used in the ATRP of 4-vinylpyridine (4-VP). CuCl/HMTETA was used as the catalyst system in the ATRP of 4-VP to acquire the H-shaped block copolymers (PVP)2-b-PCL-b-PEG-b-PCL-b-(PVP)2. The H-shaped block copolymers were characterized by FTIR,NMR,and GPC. Copolymers with high molecular weights (Mn = 46121 g/mol) and low polydispersities (Mw/Mn = 1.30) were prepared. Moreover,the morphology of the copolymer was examined with dynamic light scattering (DLS) and atomic force microscopy (AFM). Spherical micelles with a diameter of 70 nm in aqueous solution were obtained.	ShuWei Wang Bao Zhang Peng Ai Ming Zhu Wei Wang ZhongPeng Sa LiNa Ma YaPeng Li	2009	Science China Chemistry2009，52，12：	1

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