论文部分内容阅读
以负载钛体系(简称Ti)为主催化剂,三乙基铝(简称Al)为助催化剂,加氢汽油为溶剂,用溶液聚合法合成了聚1-丁烯。研究了n(Ti)/n(Bt)、n(Al)/n(Ti)、反应温度、反应时间对转化率、催化效率、聚合物的特性粘数[η]及其全同立构含量的影响。结果表明,随n(Ti)/n(Bt)增加,转化率和催化效率都不断提高;随n(Al)/n(Ti)增加、反应温度升高,转化率和催化效率呈先上升后下降趋势;随n(Al)/n(Ti)、n(Ti)/n(Bt)增大和反应温度的升高,特性粘数逐渐下降,但其对全同立构含量影响较小。
Poly (1-butene) was synthesized by solution polymerization using titanium as catalyst, Ti (Al) as cocatalyst and hydrogenated gasoline as solvent. The effects of n (Ti) / n (Bt), n (Al) / n (Ti), reaction temperature and reaction time on the conversion, catalytic efficiency, intrinsic viscosity [η] and their isotactic content Impact. The results showed that the conversion and the catalytic efficiency increased with increasing n (Ti) / n (Bt). The reaction temperature increased with the increase of n (Al) / n The intrinsic viscosity decreases with increasing n (Al) / n (Ti), n (Ti) / n (Bt) and the reaction temperature, but it has little effect on the content of isotactic.