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

文献类型:期刊论文

作者Kang, Hongliang; Liu, Wenyong; He, Benqiao; Shen, Dawa; Ma, Lin; Huang, Yong
刊名Polymer
出版日期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
DOI10.1016/j.polymer.2006.09.017
通讯作者Huang, yong(yhuang@cashq.ac.cn)
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.
WOS关键词TRANSFER RADICAL POLYMERIZATION ; ABC TRIBLOCK COPOLYMERS ; TERT-BUTYL ACRYLATE ; BLOCK-COPOLYMERS ; METHYL-METHACRYLATE ; MOLECULAR BRUSHES ; STAR POLYMERS ; STYRENE ; ATRP ; NANOPARTICLES
WOS研究方向Polymer Science
WOS类目Polymer Science
语种英语
WOS记录号WOS:000242416700010
出版者ELSEVIER SCI LTD
URI标识http://www.irgrid.ac.cn/handle/1471x/2379782
专题中国科学院大学
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.

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来源:中国科学院大学

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