Synthesis of Cylindrical Polymer Brushes with Umbrella-Like Side Chains via a Combination of Grafting-from and Grafting-onto Methods

doi:10.1021/ma4001463

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	Synthesis of Cylindrical Polymer Brushes with Umbrella-Like Side Chains via a Combination of Grafting-from and Grafting-onto Methods
	Shi, Yi; Zhu, Wen; Chen, Yongming
刊名	MACROMOLECULES
	2013-03-26
卷号	46 期号:6 页码:2391-2398
ISSN号	0024-9297
DOI	10.1021/ma4001463
英文摘要	Cylindrical polymer brushes with umbrella-like side chains have been synthesized by a combination of grafting-from and grafting-onto methods. First, the polymer brushes with azido end-functionalized poly(tert-butyl acrylate) (PtBA-N-3) side chains, PBIEM-g-(PtBA-N-3), were prepared by atom transfer radical polymerization (ATRP) of tBA monomers using polyinitiator PBIEM followed by a substitution of bromo-side terminals with sodium azide. Subsequently, polyamidoamino dendrons of three generations with a propargyl focal point (Gn) were introduced onto the brush-shaped PtBA-N-3 by copper-catalyzed azide-alkyne cycloaddition (CuAAC) coupling reaction. The efficiency of CuAAC between PtBA-N-3 side chains and Gn has showed a dependence on generation number n of the dendrons. At the feed ratio of [Gn]:[N-3] = 1:1, the grafting efficiency of the first generation dendron (G1) reached above 95%, whereas that of G2 and G3 was at least 84% and 73%, respectively. AFM images indicated that diameter of the brushes hybridized with G3 increased obviously than that of the brushes without dendrons.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000316847500039
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/54693]
专题	中国科学院化学研究所
通讯作者	Chen, Yongming
作者单位	Chinese Acad Sci, Inst Chem, Lab Polymer Phys & Chem, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Shi, Yi,Zhu, Wen,Chen, Yongming. Synthesis of Cylindrical Polymer Brushes with Umbrella-Like Side Chains via a Combination of Grafting-from and Grafting-onto Methods[J]. MACROMOLECULES,2013,46(6):2391-2398.
APA	Shi, Yi,Zhu, Wen,&Chen, Yongming.(2013).Synthesis of Cylindrical Polymer Brushes with Umbrella-Like Side Chains via a Combination of Grafting-from and Grafting-onto Methods.MACROMOLECULES,46(6),2391-2398.
MLA	Shi, Yi,et al."Synthesis of Cylindrical Polymer Brushes with Umbrella-Like Side Chains via a Combination of Grafting-from and Grafting-onto Methods".MACROMOLECULES 46.6(2013):2391-2398.