Transition of Large Compound Micelles into Cylinders in Dilute Solution: Kinetic Study

doi:10.1021/ma1006057

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	Transition of Large Compound Micelles into Cylinders in Dilute Solution: Kinetic Study
	Lin, Weiran; Zheng, Cui; Wan, Xinhua; Liang, Dehai; Zhou, Qifeng
刊名	MACROMOLECULES
	2010-06-22
卷号	43 期号:12 页码:5405-5410
ISSN号	0024-9297
DOI	10.1021/ma1006057
英文摘要	Time-resolved laser light scattering, combined with transmission electron microscopy, was employed to study the kinetics of the sphere-to-rod transition. The brush-rod block copolymer based on poly[poly(ethylene glycol) monomethyl ether methacrylate] and poly{(+)-2,5-bis[4'-((S)-2-methylbutoxy)phenyl]styrene}, PEGMA(37)-b-MBPS(141), formed spherical large compound micelles (LCM) in mixed solvent of THF and water. LCM underwent the transition to large compound rod (LCR) in the time scale of hours, and the transition was favored at higher polymer concentration and at intermediate water content. It was also found that a large amount of free polymer chains existed throughout the transition process. The depletion force generated by the free polymer chains was estimated to be in the order of 0.1kT. Therefore, besides the instability or defects of the LCM, the depletion effect also made a positive contribution to the sphere-to-rod transition.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000278631900031
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/70951]
专题	中国科学院化学研究所
通讯作者	Wan, Xinhua
作者单位	Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys,Minist Educ, Beijing 100871, Peoples R China
推荐引用方式 GB/T 7714	Lin, Weiran,Zheng, Cui,Wan, Xinhua,et al. Transition of Large Compound Micelles into Cylinders in Dilute Solution: Kinetic Study[J]. MACROMOLECULES,2010,43(12):5405-5410.
APA	Lin, Weiran,Zheng, Cui,Wan, Xinhua,Liang, Dehai,&Zhou, Qifeng.(2010).Transition of Large Compound Micelles into Cylinders in Dilute Solution: Kinetic Study.MACROMOLECULES,43(12),5405-5410.
MLA	Lin, Weiran,et al."Transition of Large Compound Micelles into Cylinders in Dilute Solution: Kinetic Study".MACROMOLECULES 43.12(2010):5405-5410.