甲基锂

四聚甲基锂中Li-C键的平均键级是0.3749，平均键能为132.1kJ/mol。

The average bond order between two methyl-lithium LiCH _3 monomers is 0.374 9 , and the average bond energy is 132.1 kJ / mol.

在乙醚溶液制得的聚苯乙烯次甲基锂与甲基丙烯酸甲酯反应不能分离出聚甲基丙烯酸甲酯及它的接枝共聚物。

Neither polymethyl methacrylate nor polymethyl methacrylate-grafted copolymer could be isolated by the reaction of polystyrene methylene lithium prepared in ether solution with methyl methacrylate .

发现聚甲基丙烯酸锂与蒙脱石不能形成纯相，但部分聚甲基丙烯酸锂分子可嵌入蒙脱石晶粒层间；

We found that MMT cant get pure phase with poly ( methyl acrylic lithium ate ), only partial poly ( methyl acrylic lithium ate ) can embed into layer of lattice of MMT .

合成的关键步骤是环烯醇磷酸酯与二甲基铜锂的加成-消除反应，在低温下可以达到高的选择性，脱N-甲基反应采用氯甲酸2,2,2-三氯乙基酯在温和条件下进行。

The key features of the synthesis are the Lithium dimethyl cuprate adding-eliminating reaction of acyclic enol phosphates at lower temperatures to achieve high selectivity and N-d-methylation with 2 , 2 , 2-trichloroethyl chloroformate proceeded smoothly .

氯甲基聚苯乙烯的锂金属化反应及其在接枝聚合上的应用

The metalation of chloromethylated polystyrene by lithium or butyl lithium and its use in the graft polymerization