论文部分内容阅读
改型镍系Ni(naph)_2-Al(i-Bu)_2OC_8H_(17)-BF_3·OEt_2的电子顺磁共振谱指出,活性中心主要由Ni(Ⅰ)组成,预混丁二烯能稳定Ni(Ⅰ)和缩短聚合反应的诱导期,但不改变聚合反应的表观活化能。
The electron paramagnetic resonance spectrum of Ni (naph) _2-Al (i-Bu) _2OC_8H_ (17) -BF_3 · OEt_2 shows that the active site mainly consists of Ni (Ⅰ), while the pre-mixed butadiene can stabilize Ni (I) and to shorten the induction period of the polymerization reaction without changing the apparent activation energy of the polymerization reaction.