文献类型：专利

英文题名：Polymerization or copolymerization of ethylene and methyl methacrylate for producing polymers or copolymers, involves using disalicylal imide nickel as main catalyst and methylaluminoxane as secondary catalyst

作者：CHEN Q;HUANG F;LI J;LIU C;LU J;SUN Y;TIAN S;WANG G;WANG S;WANG X;WU Y;XU L;ZHANG B;ZHANG D;ZHANG L;ZHONG W

机构：[1]UNIV EAST CHINA SCI&TECHNOLOGY;[2]PETROCHINA CO LTD;[3]CHINA NAT PETROLEUM CORP;[4]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN101633707-A

申请日：2008-07-24

公开日：2010-01-27

语种：英文

收录：DERWENT

摘要：NOVELTY - Ethylene and methyl methacrylate are polymerized or copolymerized using disalicylal imide nickel (I) as main catalyst and methylaluminoxane as secondary catalyst at constant temperature of 0-80 degrees C while constantly filling saturated ethylene at pressure of 1-60 atmosphere and reacted for 0.5-6 hours. The mole ratio of aluminum in the methylaluminoxane and nickel in the disalicylal imide nickel is 50-1000:1. The mole ratio of nickel in the methyl methacrylate and nickel in the disalicylal imide nickel is 100-10000:1. USE - Polymerization or copolymerization of ethylene and methyl methacrylate. ADVANTAGE - The method provides polymers or copolymers of ethylene and methyl methacrylate having favorable molecular weight, molecular weight distribution, structure and component proportion using the catalyst. DETAILED DESCRIPTION - Ethylene and methyl methacrylate are polymerized or copolymerized using disalicylal imide nickel of formula (I) as main catalyst and methylaluminoxane as secondary catalyst at constant temperature of 0-80 degrees C while constantly filling saturated ethylene at pressure of 1-60 atmosphere and reacted for 0.5-6 hours. The mole ratio of aluminum in the methylaluminoxane and nickel in the disalicylal imide nickel is 50-1000:1. The mole ratio of nickel in the methyl methacrylate and nickel in the disalicylal imide nickel is 100-10000:1. Xn=substituted 1-6C alkyl, phenyl or halo;and i-Pr=isopropyl.