铁铝催化体系催化丙烯酸丁酯聚合_房江华.pdfVIP

17 3 ( ) Vol. 17 No. 3 2004 9 JOURNAL OF NINGBO U NIVERSITY ( NSEE) Sept . 2004 1001-5132( 2004) 03- 0271- 03 1 2 2 2 2 房江华, 胡富陶, 王永红, 叶银雅, 邵卫东 ( 1. , 315016; 2. , 315211) 研究了Fe( acac) -Al( i- Bu) - 8- 羟基喹啉( acac= 乙酰丙酮) 催化体系催化丙烯 丁酯( BA ) 聚 3 3 合, 考察了聚合规律, 用凝胶渗透色谱研究了聚合物分子量和分子量分布. 动力学研究表明聚合反 应对单体浓度呈 一级关系, 表观活化能为13. 9 kJ/ mol. 铁系催化剂; 丙烯 丁酯; 聚合动力学 O631. 5 A The Polymerization of Butyl Acrylate with Fe-A-l 8-Hydoxy Quinoline Catalysts 1 2 2 2 2 FANG Jiang- hua , HU Fu- tao , WANG Yong- hong , YIE Y ing- ya , SHAO We-i dong ( 1. Dep artment of Chemical Engineering, Ningbo University of Technology, Ningbo 315016, China; 2. Faculty of Science, Ningbo University, N ingbo 315211, China) Abstract:The result of the polymerizat ion of butyl acrylate by free radical catalyst of Fe( acac) 3-Al ( i - Bu) 3- 8- hydroxy quinoline is described. The structure of the Polymer is characterized by IR. Molecular w eight and distribution w ere stud- ied by GPC. Molecular weight distribution of polybutylacrylate is narrow . The w eight increases positively w ith the molar ratio of Fe to 8- hydroxy quinoline. Free radical mechanism w as proposed for the BA polymerizat ion by Fe-Al- 8- hydroxy. Kinetic studies show ed that the BA polymerization rate is first order w ith respect to monomer concentration . The apparent activation energy of butyl acrylate polymerization reaction