Controlled grafting of ethyl cellulose with azobenzene-containing   polymethacrylates via atom transfer radical polymerization

doi:10.1002/pola.21932

CORC > 北京大学 > 化学与分子工程学院

	Controlled grafting of ethyl cellulose with azobenzene-containing polymethacrylates via atom transfer radical polymerization
	Tang, Xinde ; Gao, Longcheng ; Fan, Xinghe ; Zhou, Qifeng
刊名	journal of polymer science part a polymer chemistry
	2007
关键词	atom transfer radical polymerization (ATRP) azobenzene azo polymers ethyl cellulose graft copolymer MOLECULAR-WEIGHT COPOLYMERS POLYMERS FIBERS BEHAVIOR AZOCELLULOSE POLYSTYRENE TEMPERATURE ACID
DOI	10.1002/pola.21932
英文摘要	Graft copolymers of ethyl cellulose with azobenzene-containing polymethacrylates were synthesized through atom transfer radical polymerization (ATRP). The residual hydroxyl groups on ethyl cellulose were first esterified with 2-bromoisobutyryl bromide to yield 2-bromoisobutyryloxy groups, which was then used to initiate the polymerization of 6-[4-(4-methoxyphenylazo)phenoxy]hexyl methacrylate (MMAzo) in the presence of CuBr/N,N,N',N '',N ''-pentamethylenetriamine (PMDETA) as catalyst and anisole as solvent. The graft copolymers were characterized by gel permeation chromatography (GPC) and H-1-NMR. The molecular weights of the graft copolymers increased relatively to the macroinitiator, and the polydispersities were narrow. The thermal and liquid crystalline property of the graft copolymers were investigated by differential scanning calorimeter (DSC) and polarizing optical microscope (POM). Photoresponsive property was studied under the irradiation of UV-vis light in THF solution. The graft copolymers have potential applications, including sensors and optical materials. (c) 2007 Wiley Periodicals, Inc.; Polymer Science; SCI(E); EI; 34; ARTICLE; 9; 1653-1660; 45
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/251417]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Tang, Xinde,Gao, Longcheng,Fan, Xinghe,et al. Controlled grafting of ethyl cellulose with azobenzene-containing polymethacrylates via atom transfer radical polymerization[J]. journal of polymer science part a polymer chemistry,2007.
APA	Tang, Xinde,Gao, Longcheng,Fan, Xinghe,&Zhou, Qifeng.(2007).Controlled grafting of ethyl cellulose with azobenzene-containing polymethacrylates via atom transfer radical polymerization.journal of polymer science part a polymer chemistry.
MLA	Tang, Xinde,et al."Controlled grafting of ethyl cellulose with azobenzene-containing polymethacrylates via atom transfer radical polymerization".journal of polymer science part a polymer chemistry (2007).