Synthesis and self-assembly of a linear coil-coil-rod ABC triblock copolymer

doi:10.1007/s10118-014-1533-7

CORC > 化学研究所 > 中国科学院化学研究所

	Synthesis and self-assembly of a linear coil-coil-rod ABC triblock copolymer
	Shi, Ling-ying 1,2; Pan, Yu 1; Zhang, Qi-kai 1; Zhou, Yu 1; Fan, Xing-he 1; Shen, Zhi-hao 1
刊名	CHINESE JOURNAL OF POLYMER SCIENCE
	2014-11-01
卷号	32 期号:11 页码:1524-1534
关键词	Coil-coil-rod Triblock Copolymer Self-assembly Order-order Transition Liquid Crystalline Polymer Complex Nanostructures
ISSN号	0256-7679
DOI	10.1007/s10118-014-1533-7
英文摘要	An interesting order-order transition between two different complex nanostructures was observed in a new liquid crystalline linear coil-coil-rod ABC triblock copolymer (triBCP). First, the ABC triBCP, poly(dimethylsiloxane)-bpolystyrene-b-poly{2,5-bis[(4-methoxyphenyl)oxycarbonyl]styrene} (PDMS-b-PS-b-PMPCS), was synthesized through sequential atom transfer radical polymerization. The degrees of polymerization of PDMS, PS, and PMPCS blocks are 58, 159, and 106, and the corresponding volume fractions of PDMS, PS, and PMPCS are 0.09, 0.29, and 0.62, respectively. The phase behaviors of the PDMS-b-PS diblock copolymer precursor and the final triblock copolymer were studied by smallangle X-ray scattering, one-dimensional wide-angle X-ray scattering, and transmission electron microscopy experiments. The PDMS-b-PS precursor self-assembles into hexagonally packed cylinders with a relatively small periodic size after thermal annealing. When the triblock copolymer is annealed at a relatively low temperature (120 A degrees C) at which the PMPCS block is in the amorphous state, the triBCP forms core-shell hexagonally packed cylinders (CSH) with a relativly large periodic size. After the triBCP is annealed above 140 A degrees C at which the PMPCS block transforms to the liquid crystalline (LC) phase, the nanophase-separated structure transforms to a three-phase four-layer lamellar structure (LAM-3P4L). Thus, accompanied with the transition of the PMPCS blocks from the amorphous state to the LC phase, the order-order transition from CSH to LAM-3P4L occurs in the PDMS-b-PS-b-PMPCS ABC triBCP.
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000342420700012
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/50853]
专题	中国科学院化学研究所
通讯作者	Shen, Zhi-hao
作者单位	1.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys,Minist Educ, Beijing 100871, Peoples R China 2.Sichuan Univ, Coll Polymer Sci & Engn, State Key Lab Polymer Mat Engn, Chengdu 610065, Peoples R China
推荐引用方式 GB/T 7714	Shi, Ling-ying,Pan, Yu,Zhang, Qi-kai,et al. Synthesis and self-assembly of a linear coil-coil-rod ABC triblock copolymer[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2014,32(11):1524-1534.
APA	Shi, Ling-ying,Pan, Yu,Zhang, Qi-kai,Zhou, Yu,Fan, Xing-he,&Shen, Zhi-hao.(2014).Synthesis and self-assembly of a linear coil-coil-rod ABC triblock copolymer.CHINESE JOURNAL OF POLYMER SCIENCE,32(11),1524-1534.
MLA	Shi, Ling-ying,et al."Synthesis and self-assembly of a linear coil-coil-rod ABC triblock copolymer".CHINESE JOURNAL OF POLYMER SCIENCE 32.11(2014):1524-1534.