莫卡合成新方法赵守佳（北京市三原建筑粘合材料厂１０００７１）莫卡，学名３，３－二氯－４，４－二苯基甲烷二胺，是聚氨酯防水涂料常用的扩链剂之一，和其它二元醇或胺相比，具有以下优点：（１）在莫卡分子中，氨基的邻位有一个吸电子的红原子，通过共轭效应和诱导效... New Moka synthesis method Zhao Shoujia (Beijing Sanyuan Building Bonding Material Factory 100071) Moka, scientific name 3,3-dichloro-4,4-diphenylmethanediamine, is one of the commonly used chain extenders for polyurethane waterproof coatings. Compared with other dihydric alcohols or amines, it has the following advantages: (1) In the mocha molecule, there is an electron-withdrawing red atom in the ortho position of the amino group, and the conjugated effect and induction effect are...