【摘要】 经烷基化、甲酰化、Schiff碱缩合反应,制得水杨醛亚胺配体(3),其Na盐与trans-[NiCl(Ph)(PPh3)2]反应合成了中性镍配合物(4){[[O-(3-Cyclohexanyl)(5-CH3)C6H2-ortho-C(H)=N-2,6-C6H3(i-Pr)2]Ni(Ph3P)(Ph)]2-CH2},以GC-MS,1H NMR对中间产物及配合物进行了表征.在Al(i-Bu)3的助催化作用下,配合物(4)能有效催化MMA聚合.考察了温度、时间、Al/Cat(4)和MMA/Cat(4)等对聚合反应的影响.在Al/Cat(4)为10,聚合温度为60℃,聚合时间为15 h,MMA/Cat(4)为1 000的条件下,催化MMA聚合的单体转化率为69.9%,所得PMMA的相对分子质量分布为2.02.更多还原

【Abstract】 Substituted salicyladimine ligand（3） was prepared by alkylation,formulation and condensation,it’s sodiumsalt reacted with trans- giving the neutral nickel（Ⅱ） complex（4） {[[O-（3-Cy-clohexanyl）（5-CH₃）C₆H₂-ortho-C（H）=N-2,6-C₆H₃-（i-Pr）₂]Ni（Ph₃P）（Ph）]₂CH₂}.All intermediates and neutral complex（4） were characterized by GC-MS,¹H NMR.The complex（4） activated by Al（i-Bu）₃ can catalyze MMA polymerization effectively.The effect of polymerization parameters,such as temperature,time,molar ratios of Al/Cat（4）,and MMA/Cat（4） were studied in detail.At the polymerization conditions: Al/Cat（4）=10;MMA/Cat（4）=1000;60 ℃;15 h,the conversion of MMA reached 69.9%,and the polydispersity of PMMA was 2.02.更多还原