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本工作研究了醇和酚与BF_3OEt_2(B)的相互作用,以及Al—Ni陈化,不同比例醇和酚配合后和B预混,用稀释单加的加料方式的丁二烯聚合规律。实验结果表明,醇和B作用可形成B—OR化学键,引入长链脂肪烃基(R)可增加B在加氢汽油中的溶解性。~1H—NMR谱及温度实验否定了醇和B通过形成氢键来增加B在加氢汽油中溶解性的观点。不同比例的醇和酚配合后与B预混时,发现有协同效应。聚合实验结果表明,并不排除AlFY_2(Y=i-Bu或OR)可能也是构成活性中心的有效成分,这与松本毅等的观点不同。通过改变Al/B比可以调节聚合物分子量。
In this work, the interaction between alcohol and phenol and BF_3OEt_2 (B) and the aging of Al-Ni were studied. The polymerization of butadiene with different proportions of alcohol and phenol and premixed with B and fed with dilution alone was studied. The experimental results show that the B-OR bond can be formed by the action of alcohol and B. The introduction of long-chain aliphatic hydrocarbon (R) can increase the solubility of B in hydrogenated gasoline. ~ 1H-NMR spectra and temperature experiments negate the viewpoint that alcohol and B increase the solubility of B in hydrogenated gasoline by hydrogen bonding. Synergistic effects were found when different proportions of alcohol and phenol were premixed with B. The experimental results show that it is not excluded that AlFY_2 (Y = i-Bu or OR) may also constitute the active component of the active site, which is different from that of Matsumoto et al. The polymer molecular weight can be adjusted by changing the Al / B ratio.