Study of semicrystalline-amorphous diblock copolymers .1. Microphase separation, glass transition and crystallization of tetrahydrofuran methyl methacrylate diblock copolymers

	Study of semicrystalline-amorphous diblock copolymers .1. Microphase separation, glass transition and crystallization of tetrahydrofuran methyl methacrylate diblock copolymers
	Liu LH ; Jiang BZ ; Zhou EL
刊名	polymer
	1996
卷号	37 期号:17 页码:3937-3943
关键词	BLOCK CO-POLYMERS POLY(ETHYLENE OXIDE) BLOCK EQUILIBRIUM MORPHOLOGY MICRODOMAIN MORPHOLOGY EPSILON-CAPROLACTONE PHASE-DIAGRAM DOMAINS SOLVENT BLENDS MELTS
ISSN号	0032-3861
中文摘要	the microphase separation, glass transition and crystallization of two series of tetrahydrofuran-methyl methacrylate diblock copolymers (pthf-b-pmma), one with a given pthf block of m(n) = 5100 and the other with a given pthf block of (m) over bar(n) = 7000, were studied in this present work. in the case of solution-cast materials, the microphase separation of the copolymer takes place first, with crystallization then gradually starting in the formed pthf microphase. the t-g of the pmma microphase shows a strong dependence on the molecular weight of the pmma block, while the t-g of the pthf microphase shows a strong dependence on the copolymer composition. the non-isothermal crystallization temperature (t-c) of the diblock copolymer decreases rapidly and continuously with the increase in the amorphous pmma weight fraction; the lowest t-c of the copolymer is ca. 35 k lower than the t-c of the pthf homopolymer. there also exists a t-c dependence on the molecular weight of the pthf block. in addition, when the major component of the copolymer is pmma, a strong dependence of the crystallizability of the copolymer on the molecular weight of the pthf block is observed; the higher the molecular weight, then the stronger its crystallizability. the melting temperature of the block copolymer is dependent on the copolymer composition and the molecular weight of its crystallizable block. copyright (c) 1996 elsevier science ltd.
收录类别	SCI收录期刊论文
语种	英语
公开日期	2010-12-22 ; 2011-06-09
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/25283]
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	Liu LH,Jiang BZ,Zhou EL. Study of semicrystalline-amorphous diblock copolymers .1. Microphase separation, glass transition and crystallization of tetrahydrofuran methyl methacrylate diblock copolymers[J]. polymer,1996,37(17):3937-3943.
APA	Liu LH,Jiang BZ,&Zhou EL.(1996).Study of semicrystalline-amorphous diblock copolymers .1. Microphase separation, glass transition and crystallization of tetrahydrofuran methyl methacrylate diblock copolymers.polymer,37(17),3937-3943.
MLA	Liu LH,et al."Study of semicrystalline-amorphous diblock copolymers .1. Microphase separation, glass transition and crystallization of tetrahydrofuran methyl methacrylate diblock copolymers".polymer 37.17(1996):3937-3943.