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本文借助于紫外可见光谱、磁化率法和聚合活性测定等方法,研究了BF_3·OEt_2在镍体系催化丁二烯聚合中的作用。初步探明了BF_3·OEt_2与Ni(naph)_2作用会形成“F-B-Ni”配合物,对形成活性中心不利。
In this paper, the effect of BF_3 · OEt_2 on the polymerization of butadiene catalyzed by nickel system has been studied by means of UV-VIS, magnetic susceptibility and polymerization activity measurement. It was initially proved that the interaction of BF_3 · OEt_2 with Ni (naph) _2 could form “F-B-Ni” complex, which was detrimental to the formation of active site.