In olefin polymerization using methylaluminoxane (MAO) as a cocatalyst, the remaining trialkylaluminum (R₃Al) in MAO sometimes leads to negative effects, such as a decrease in activity and molecular weight of the obtained polymer. Thus, in this study, the amount of R₃Al in modified MAO (MMAO) was reduced by using a crosslinked terpolymer bearing bulky phenoxy groups as a solid support for R₃Al. The R₃Al removal efficiency of the terpolymer at a certain hydroxy group content was found to be much higher than that of SiO₂, which has been previously reported to be an efficient R₃Al remover. This is probably because of the steric bulkiness around the hydroxy groups and because some R₃Al is physically adsorbed into the terpolymer. The chain transfer reaction derived from residual R₃Al in propylene polymerization is mostly suppressed after the treatment of MMAO with the terpolymer.

在使用甲基铝氧烷（MAO）作为助催化剂的烯烃聚合中，MAO中剩余的三烷基铝（R ₃ Al）有时会导致负面影响，例如所得聚合物的活性和分子量降低。因此，在本研究中，通过使用带有庞大苯氧基的交联三元共聚物作为 R ₃ Al的固体载体，减少了改性 MAO (MMAO)中 R ₃ Al的含量。发现在特定羟基含量下，三元共聚物的 R ₃ Al 去除效率远高于 SiO _{2 的}去除效率，SiO ₂先前已被报道为有效的 R ₃ Al 去除剂。这可能是因为羟基周围的空间体积大，并且因为一些 R₃ Al 物理吸附到三元共聚物中。在用三元共聚物处理MMAO后，丙烯聚合中由残留的R ₃ Al衍生的链转移反应大多被抑制。