Crystallization behavior of PEG/PLLA block copolymers: Effect of the different architectures and molecular weights

	Crystallization behavior of PEG/PLLA block copolymers: Effect of the different architectures and molecular weights
	Zhou,Dongdong; Shao,Jun; Li,Gao; Sun,Jingru; Bian,Xinchao; Chen,Xuesi
刊名	polymer
	2015
卷号	62 期号:15 页码:70-76
关键词	GLYCOL) DIBLOCK COPOLYMERS ACID) TRIBLOCK COPOLYMER MULTIBLOCK COPOLYMERS POLY(ETHYLENE GLYCOL) THERMAL CHARACTERIZATION POLY(LACTIC ACID) PHASE-TRANSITION PLA RESEARCH POLY(L-LACTIDE) MORPHOLOGY
通讯作者	li,g
英文摘要	peg/plla block copolymers bearing various number of arms were synthesized. the molecular weights of plla in the block polymers were determined by h-1 nmr and gpc. for 1-arm, 2-arm, 4-arm peg/plea block copolymers, dsc and waxd results indicated that the different architectures and compositions of the block copolymers didn't alter the structures of peg and plea crystallites, but markedly affected the crystallinities and melting temperatures of peg and plea. the critical m-n,m-plla of each arm decreased with the number of arms increasing (m-n,(mpeg5-plia) > m-n,(2peg10-plla) > m-n,(4peg20-plla)), when the peg crystallites were not detected. as m-n (plla) of each arm was similar in the copolymers, t-m, (peg) and x-peg decreased gradually with the number of arms increasing, and the similar regularities also displayed for plla. the crystallization behavior and the variation architectures of peg/plea copolymers can provide primary data to the applications in the drug delivery and industry parts. (c) 2015 elsevier ltd. all rights reserved.
收录类别	SCI
语种	英语
公开日期	2016-05-31
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/67889]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Zhou,Dongdong,Shao,Jun,Li,Gao,et al. Crystallization behavior of PEG/PLLA block copolymers: Effect of the different architectures and molecular weights[J]. polymer,2015,62(15):70-76.
APA	Zhou,Dongdong,Shao,Jun,Li,Gao,Sun,Jingru,Bian,Xinchao,&Chen,Xuesi.(2015).Crystallization behavior of PEG/PLLA block copolymers: Effect of the different architectures and molecular weights.polymer,62(15),70-76.
MLA	Zhou,Dongdong,et al."Crystallization behavior of PEG/PLLA block copolymers: Effect of the different architectures and molecular weights".polymer 62.15(2015):70-76.