BMI 单体两端为不饱和的碳碳双键，双键邻旁的carbonyl group 具有拉电子(electron withdrawing)的特性，导致形成寡电子性 (electron-deficient)的双键，使得双键活性增大，易发生交联硬化 反应。
基于20个网页-相关网页
electron withdrawing group 吸电子基 ; 吸电子基团
electron-withdrawing substituent 拉电子取代基
electron-withdrawing inductive effects 拉电子诱导效应
electron-withdrawing aryl Grignard reagent 吸电子型芳基格氏试剂
high electron withdrawing ability 高电子撤回的能力 ; 高吸电子能力
electron withdrawing ability 吸电子能力
electron withdrawing groups 拉电子基团
electron-withdrawing structure 抽离电子的结构
Electron withdrawing groups can enhance the limiting effect for this kind of complexes, but the effect of heavy atom ACTS opposite role.
吸电子基团能增强该类配合物对皮秒激光的限幅效果，而重原子效应则起相反的作用。
Raman spectroscopy results showed that: the presence of electron withdrawing groups improved the bond energy of C-H in the benzene ring.
拉曼光谱分析结果证明：吸电子基团的存在使苯环上c - H的键能提高。
With increasing the electron withdrawing substituents in the phenoxy ring, the catalytic activity was increased, and the molecular weight of polyethylene decreased.
研究表明水杨醛亚胺镍配合物中苯环上取代基的电子效应和空间位阻对乙烯聚合活性和聚合物的分子量有所影响。
应用推荐