Isospecific Polymerization of Methyl Methacrylate by Intramolecular Rare-Earth Metal Based Lewis Pairs  

作　　者：Yiqun Zhou Shengjie Jiang Xin Xu 

机构地区：[1]Key Loborotory of Organic Synthesis of Jiangsu Province,College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou,Jiangsu 215123,China

出　　处：《Chinese Journal of Chemistry》2021年第1期149-156,共8页中国化学（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(21871204),1000-Youth Talents Plan,and PAPD.

摘　　要：A series of cationic rare-earth aryloxide complexes,ie,,[LREOAr^(1)]^(+)[B(C_(6)F_(5))_(4)]^(-)(L=CH_(3)C(NAr)CHC(CH_(3))(NCH(R)CH_(2)PPh_(2));RE=Y,Lu;Ar'=2,6-tBU_(2)-C_(6)H_(3),2,6-(PhCMe_(2))_(2)-4-Me-C_(6)H_(2);Ar=2,6-iPr_(2)-C_(6)H_(3),2,6-(Ph_(2)CH)_(2)-4-iPr-C_(6)H_(2);R=H,CH_(3),iPr,Ph),were prepared and ap-plied to the Lewis pair polymerization of methyl methacrylate(MMA).The stereoregularity of the resulting PMMA was significantly affected by the R substituent on the pendant arm of the tridentate NNP ligand,and was found to increase with increase in the steric hindrance of R.

关 键 词：RARE-EARTH Lewis pair Tridentate ligand POLYMERIZATION TACTICITY 

分 类 号：O62[理学—有机化学]