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	Synthesis, characterization, and thermal properties of dendrimer-star, block-comb copolymers by ring-opening polymerization and atom transfer radical polymerization
	Yuan, Weizhong ; Yuan, Jinying ; Zhou, Mi ; Sui, Xiaofeng
	2010-05-06 ; 2010-05-06
关键词	atom transfer radical polymerization (ATRP) block copolymers dendrimer-star block-comb copolymers graft copolymers ring-opening polymerization TERMINATOR MULTIFUNCTIONAL INITIATOR 2-HYDROXYETHYL METHACRYLATE CONVENTIONAL MONOMERS POLY(ETHYLENE GLYCOL) DIVERGENT SYNTHESIS ITERATIVE STRATEGY AQUEOUS-SOLUTIONS POLY(EPSILON-CAPROLACTONE) POLYMERS CRYSTALLIZATION Polymer Science
中文摘要	Novel and well-defined dendrimer-star, block-comb polymers were successfully achieved by the combination of living ring-opening polymerization and atom transfer radical polymerization on the basis of a dendrimer polyester. Star-shaped dendrimer poly(epsilon-caprolactone)s were synthesized by the bulk polymerization of epsilon-caprolactone with a dendrimer initiator and tin 2-ethylhexanoate as a catalyst. The molecular weights of the dendrimer poly(epsilon-caprolactone)s increased linearly with an increase in the monomer. The dendrimer poly(epsilon-caprolactone)s were converted into macroinitiators via esterification with 2-bromopropionyl bromide. The star-block copolymer dendrimer poly(epsilon-caprolactone)-block-poly(2-hydroxyethyl methacrylate) was obtained by the atom transfer radical polymerization of 2-hydroxyethyl methacrylate. The molecular weights of these copolymers were adjusted by the variation of the monomer conversion. Then, dendrimer-star, block-comb copolymers were prepared with poly(L-lactide) blocks grafted from poly(2-hydroxyethyl methacrylate) blocks by the ring-opening polymerization Of L-lactide. The unique and well-defined structure of these copolymers presented thermal properties that were different from those of linear poly(epsilon-caprolactone). (c) 2006 Wiley Periodicals, Inc.
语种	英语 ; 英语
出版者	JOHN WILEY & SONS INC ; HOBOKEN ; 111 RIVER ST, HOBOKEN, NJ 07030 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/12756]
专题	清华大学
推荐引用方式 GB/T 7714	Yuan, Weizhong,Yuan, Jinying,Zhou, Mi,et al. Synthesis, characterization, and thermal properties of dendrimer-star, block-comb copolymers by ring-opening polymerization and atom transfer radical polymerization[J],2010, 2010.
APA	Yuan, Weizhong,Yuan, Jinying,Zhou, Mi,&Sui, Xiaofeng.(2010).Synthesis, characterization, and thermal properties of dendrimer-star, block-comb copolymers by ring-opening polymerization and atom transfer radical polymerization..
MLA	Yuan, Weizhong,et al."Synthesis, characterization, and thermal properties of dendrimer-star, block-comb copolymers by ring-opening polymerization and atom transfer radical polymerization".(2010).

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