Synthesis of amphiphilic ethyl cellulose grafting poly(acrylic acid) copolymers and their self-assembly morphologies in water

doi:10.1016/j.polymer.2006.09.017

CORC > 化学研究所 > 中国科学院化学研究所

	Synthesis of amphiphilic ethyl cellulose grafting poly(acrylic acid) copolymers and their self-assembly morphologies in water
	Kang, Hongliang ; Liu, Wenyong ; He, Benqiao ; Shen, Dawa ; Ma, Lin ; Huang, Yong
刊名	POLYMER
	2006-10-30
卷号	47 期号:23 页码:7927-7934
关键词	Ethyl Cellulose-g-poly(Acrylic Acid) Atrp Self-assembly
ISSN号	0032-3861
DOI	10.1016/j.polymer.2006.09.017
英文摘要	Amphiphilic ethyl cellulose (EC)-g-poly(acrylic acid) (PAA) copolymers were synthesized by atom transfer radical polymerization (ATRP). Firstly, ethyl cellulose macro-initiators with the degree of the 2-bromoisobutyryl substitution of 0.04 and 0.25 synthesized by the esterification of the hydroxyl groups remained in EC macromolecular chains and the 2-bromoisobutyryl bromides. Secondly, tert-butyl acrylate was polymerized by ATRP with the ethyl cellulose macro-initiator and EC-g-PtBA copolymers were prepared. Finally, the EC-g-PAA copolymers were prepared by hydrolyzing tert-butyl group of the EC-g-PtBA copolymers. The grafting copolymers were characterized by means of GPC, H-1 NMR and FTIR spectroscopies. The molecular weight of graft copolymers increased during the polymerization and the polydispersity was low. A kinetic study showed that the polymerization was first-order. Meanwhile, EC-g-PAA copolymers were self-assembled to micelles or particles with diameters of 5 nm and 100 nm in water (pH = 10) when the concentration was 1.0 mg/ml. (c) 2006 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000242416700010
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/59985]
专题	中国科学院化学研究所
通讯作者	Huang, Yong
作者单位	1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat, Inst Chem,BNLMS, Beijing 100080, Peoples R China 2.Grad Univ, Chinese Acad Sci, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Chem, Lab Cellulose & Lignocellulos Chem, Guangzhou 510650, Peoples R China
推荐引用方式 GB/T 7714	Kang, Hongliang,Liu, Wenyong,He, Benqiao,et al. Synthesis of amphiphilic ethyl cellulose grafting poly(acrylic acid) copolymers and their self-assembly morphologies in water[J]. POLYMER,2006,47(23):7927-7934.
APA	Kang, Hongliang,Liu, Wenyong,He, Benqiao,Shen, Dawa,Ma, Lin,&Huang, Yong.(2006).Synthesis of amphiphilic ethyl cellulose grafting poly(acrylic acid) copolymers and their self-assembly morphologies in water.POLYMER,47(23),7927-7934.
MLA	Kang, Hongliang,et al."Synthesis of amphiphilic ethyl cellulose grafting poly(acrylic acid) copolymers and their self-assembly morphologies in water".POLYMER 47.23(2006):7927-7934.