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	Synthesis of Cellulose-graft-Poly(N,N-dimethylamino-2-ethyl methacrylate) Copolymers via Homogeneous ATRP and Their Aggregates in Aqueous Media
	Sui, Xiaofeng ; Yuan, Jinying ; Zhou, Mi ; Zhang, Jun ; Yang, Haijun ; Yuan, Weizhong ; Wei, Yen ; Pan, Caiyuan
	2010-05-06 ; 2010-05-06 ; OCT
关键词	TRANSFER RADICAL POLYMERIZATION RING-OPENING POLYMERIZATION GRAFT-COPOLYMERIZATION IONIC LIQUID DIBLOCK COPOLYMERS CELLULOSE FIBERS BLOCK-COPOLYMERS ETHYL CELLULOSE DRUG-RELEASE TEMPERATURE Biochemistry & Molecular Biology Chemistry, Organic Polymer Science
中文摘要	Cellulose-graft-poly(N,N-dimethylamino-2-ethyl methacrylate) (cellulose-g-PDMAEMA) copolymers were prepared by homogeneous atom transfer radical polymerization (ATRP) under mild conditions. Cellulose macroinitiator was successfully synthesized by direct acylation of cellulose with 2-bromopropionyl bromide in a room temperature ionic liquid (RTIL), 1-allyl-3-methylimidazolium chloride. Copolymers were obtained via ATRP of N,N-dimethylamino-2-ethyl methacrylate (DMAEMA) with CuBr/pentamethyldiethylenetriamine (PMDETA) as catalyst and N,N-dimethylformamide (DMF) as solvent without homopolymer byproduct. The grafting copolymers were characterized by H-1 NMR, FT-IR, and TGA measurements. The results confirmed that PDMAEMA had been covalently bonded to cellulose backbone. Furthermore, the assemblies or aggregates formed by cellulose-g-PDMAEMA copolymers in water were studied at various concentrations, temperatures, and pH values by means of UV, DLS, TEM, and AFM. The results indicate that the copolymers had the pH- and temperature-responsive properties similar to the expected stimuli-responses by PDMAEMA. The synthetic strategy presented here could be employed in the preparation of other novel biomaterials from a variety of polysaccharides.
语种	英语 ; 英语
出版者	AMER CHEMICAL SOC ; WASHINGTON ; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/12191]
专题	清华大学
推荐引用方式 GB/T 7714	Sui, Xiaofeng,Yuan, Jinying,Zhou, Mi,et al. Synthesis of Cellulose-graft-Poly(N,N-dimethylamino-2-ethyl methacrylate) Copolymers via Homogeneous ATRP and Their Aggregates in Aqueous Media[J],2010, 2010, OCT.
APA	Sui, Xiaofeng.,Yuan, Jinying.,Zhou, Mi.,Zhang, Jun.,Yang, Haijun.,...&Pan, Caiyuan.(2010).Synthesis of Cellulose-graft-Poly(N,N-dimethylamino-2-ethyl methacrylate) Copolymers via Homogeneous ATRP and Their Aggregates in Aqueous Media..
MLA	Sui, Xiaofeng,et al."Synthesis of Cellulose-graft-Poly(N,N-dimethylamino-2-ethyl methacrylate) Copolymers via Homogeneous ATRP and Their Aggregates in Aqueous Media".(2010).

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