PMID- 18774859
OWN - NLM
STAT- MEDLINE
DCOM- 20090501
LR  - 20131121
IS  - 1526-4602 (Electronic)
IS  - 1525-7797 (Linking)
VI  - 9
IP  - 10
DP  - 2008 Oct
TI  - Synthesis of cellulose-graft-poly(N,N-dimethylamino-2-ethyl methacrylate) 
      copolymers via homogeneous ATRP and their aggregates in aqueous media.
PG  - 2615-20
LID - 10.1021/bm800538d [doi]
AB  - 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 (1)H 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.
FAU - Sui, Xiaofeng
AU  - Sui X
AD  - Key Laboratory of Organic Optoelectronics and Molecular Engineering of the 
      Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 
      100084, People's Republic of China.
FAU - Yuan, Jinying
AU  - Yuan J
FAU - Zhou, Mi
AU  - Zhou M
FAU - Zhang, Jun
AU  - Zhang J
FAU - Yang, Haijun
AU  - Yang H
FAU - Yuan, Weizhong
AU  - Yuan W
FAU - Wei, Yen
AU  - Wei Y
FAU - Pan, Caiyuan
AU  - Pan C
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20080906
PL  - United States
TA  - Biomacromolecules
JT  - Biomacromolecules
JID - 100892849
RN  - 0 (Methacrylates)
RN  - 0 (Nylons)
RN  - 0 (Polymers)
RN  - 0 (Polysaccharides)
RN  - 0 (Solvents)
RN  - 0 (poly(2-(dimethylamino)ethyl methacrylate))
RN  - 059QF0KO0R (Water)
RN  - 9004-34-6 (Cellulose)
SB  - IM
MH  - Cellulose/*chemistry
MH  - Hydrogen-Ion Concentration
MH  - Light
MH  - Magnetic Resonance Spectroscopy
MH  - Methacrylates/*chemistry
MH  - Microscopy, Atomic Force
MH  - Models, Chemical
MH  - Nylons/*chemistry
MH  - Polymers/chemistry
MH  - Polysaccharides/chemistry
MH  - Scattering, Radiation
MH  - Solvents/chemistry
MH  - Spectroscopy, Fourier Transform Infrared
MH  - Temperature
MH  - Thermogravimetry/methods
MH  - Water/chemistry
EDAT- 2008/09/09 09:00
MHDA- 2009/05/02 09:00
CRDT- 2008/09/09 09:00
PHST- 2008/09/09 09:00 [pubmed]
PHST- 2009/05/02 09:00 [medline]
PHST- 2008/09/09 09:00 [entrez]
AID - 10.1021/bm800538d [doi]
PST - ppublish
SO  - Biomacromolecules. 2008 Oct;9(10):2615-20. doi: 10.1021/bm800538d. Epub 2008 Sep 
      6.