Kinetics of Atom Transfer Radical Polymerization of Methyl Methacrylate Initiated by Cellulose Chloroacetate in BMIMCI

• Published in: 高等学校化学研究（英文版） Vol. 29; no. 1; pp. 159 - 165
• Main Author: LIN Chun-xiang ZHAN Huai-yu LIU Ming-hua FU Shi-yu LUCIA Lucian
• Format: Journal Article
• Language: English
• Published: Laboratory of Soft Materials & Green Chemistry, Department of Wood & Paper Science,North Carolina State University, Raleigh 27695-8005, USA 2013; College of Environment & Resources, Fuzhou University, Fuzhou 350002, P.R.China%State Key Laboratory of Pulp & Paper Engineering, South China University of Technology,Guangzhou 510640, P.R.China%State Key Laboratory of Pulp & Paper Engineering, South China University of Technology,Guangzhou 510640, P.R.China
• Subjects: 乙酸纤维素; 二甲基甲酰胺; 原子转移自由基聚合; 引发剂; 氯乙酸; 甲基丙烯酸甲酯; 纤维素类; 聚合反应动力学; Atom transfer radical polymerization(ATRP); Methyl methacrylate; Kinetics
• ISSN: 1005-9040; 2210-3171
• DOI: 10.1007/s40242-013-2058-2

The kinetics of atom transfer radical polymerization（ATRP） of methyl methacrylate（MMA） initiated by cellulose based macroinitator, cellulose chloroacetate, performed in ionic liquid（1-N-butyl-3-methylimidazolium chloride, BMIMC1）, dimethyl sulfoxide（DMSO） and dimethyl formamide（DMF） were respectively studied in detail. The polymerizations were carried out under homogeneous conditions with CuBr as catalyst and 2,2＇-bipyridine（bpy） as ligand. The dependences of the rate of polymerization on solvent, temperature, monomer/initiator ratio and catalyst/ligand ratio were presented. Plots of ln（[M]0/[M]t） vs. time and molecular weight vs. conversion showed a linear dependence, indicating a constant number of propagating species throughout the polymerization as well as a negligible contribution of termination or transfer reactions. On the basis of an Arrhenius plot, the apparent energy of activation（AEaapp ） for ATRP of MMA in BMIMC1 was 16.6 kJ/mol which is much lower than that in diphenyl ether.