单体活性(Monomer Reactivity)：单体的活性我们一般通过单体的相对活性来衡量，一般用某一自由基同另一单体反应的增长速率常数与该自由基同其本身单体反应的增...
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包含所述双核过渡金属化合物的催化剂组合物对于含有极性官能团的单体活性高。
A catalyst composition including the dinuclear transition metal compound is highly active for a monomer having a polar functional group.
原因应该是由于单体活性不足造成在反应体系中的积累，从而影响了对反应的控制。
The reason is that the reaction control is effected by the accumulation of the less monomer activity in the reaction system.
实验发现乙烯基磺酸酯类单体活性较低，与MMA和MAA单体聚合时不能很好的参与聚合反应。
Vinyl sulfonate monomers were experimentally found of lower reactivity and couldn't effectively copolymerize with MMA and MAA.
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