New Morphologies and Phase Transitions of Rod-Coil Dendritic-Linear Block Copolymers Depending on Dendron Generation and Preparation Procedure

doi:10.1021/ma402112n

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	New Morphologies and Phase Transitions of Rod-Coil Dendritic-Linear Block Copolymers Depending on Dendron Generation and Preparation Procedure
	Cai, Huanhuan 1; Jiang, Guoliang 1; Chen, Chongyi 2; Li, Zhibo 2; Shen, Zhihao 1; Fan, Xinghe 1
刊名	MACROMOLECULES
	2014-01-14
卷号	47 期号:1 页码:146-151
ISSN号	0024-9297
DOI	10.1021/ma402112n
英文摘要	Amphiphilic rod coil dendritic linear block copolymers PEG(G(m))-b-PMPCS (where m is the number of dendron generation, and m = 1, 2, 3) composed of a semirigid Percec-type dendron with hydrophilic poly(ethylene glycol) (PEG) tails and a rodlike mesogen-jacketed liquid crystalline polymer, poly{2,5-bis[(4'-methoxy-phenyl)oxycarbonyl]styrene} (PMPCS), were successfully prepared. The self-assembled structures undergo a transition from vesicles through large compound vesicles (LCVs) to short cylindrical micelles with increasing dendron generation. PEG(G(2))-b-PMPCS forms stable LCVs with porous surfaces of a narrow size distribution in a mixed solvent of tetrahydrofuran and water. The formation mechanism of the supramolecular structure with nano- and microsized scales is studied through changing the rate of water addition. It is composed of two steps: morphological transformation and vesicles fusion or differentiation. Vesicles are precursors for LCVs regardless of what the initial morphology is. However, the final LCV structures are different. Slow addition of water produces spherical LCVs, while those formed during fast water addition are irregular (like deformed spherical) LCVs.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000330001700018
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/50059]
专题	中国科学院化学研究所
通讯作者	Shen, Zhihao
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.Chinese Acad Sci, Inst Chem, Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Cai, Huanhuan,Jiang, Guoliang,Chen, Chongyi,et al. New Morphologies and Phase Transitions of Rod-Coil Dendritic-Linear Block Copolymers Depending on Dendron Generation and Preparation Procedure[J]. MACROMOLECULES,2014,47(1):146-151.
APA	Cai, Huanhuan,Jiang, Guoliang,Chen, Chongyi,Li, Zhibo,Shen, Zhihao,&Fan, Xinghe.(2014).New Morphologies and Phase Transitions of Rod-Coil Dendritic-Linear Block Copolymers Depending on Dendron Generation and Preparation Procedure.MACROMOLECULES,47(1),146-151.
MLA	Cai, Huanhuan,et al."New Morphologies and Phase Transitions of Rod-Coil Dendritic-Linear Block Copolymers Depending on Dendron Generation and Preparation Procedure".MACROMOLECULES 47.1(2014):146-151.