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Synthesis of a Multi Alternating-Arm-Containing Dendritic Star Copolymer by RAFT and Cationic Ring-Opening Polymerization
writer:Zhong, L.; Zhou, Y. F.*; Yan, D. Y.*, Pan, C. Y.
keywords:dendrimers, heteroarm, ring-opening polymerization, reversible addition fragmentation transfer (RAFT), star copolymers
source:期刊
specific source:Macromol. Rapid Commun. 2008, 29, 1385. http://onlinelibrary.wiley.com/doi/10.1002/marc.200800223/pd
Issue time:2008年

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Thumbnail image of graphical abstract

A new dendritic heteroarm star copolymer that contains multi-alternating arms of poly(ethylene oxide-tetrahydrofuran) (P(EO-THF)) and poly(methyl methacrylate) (PMMA) on a dendritic polyester core has been synthesized by a ‘core-first’ approach by combination of sequential cationic ring-opening polymerization (CROP) and reversible addition–fragmentation transfer (RAFT) polymerization initiated by a dendritic macroinitiator (3) capped with multi-alternating terminal carboxylic acid groups (used directly to initiate the ROP of THF in the presence of EO as a polymerization promoter to attain P(EO-THF) arms) and dithiobenzoate groups (used to initiate RAFT polymerization of MMA to attain PMMA arms). The structures of the products were confirmed by NMR spectroscopy, GPC-MALLS, and DSC measurements.