A method of making a copolymer composition containing a copolymer, which includes the steps of (a) providing a donor monomer composition that includes an isobutylene type monomer; (b) mixing the donor monomer composition with an ethylenically unsaturated monomer composition that includes one or more ethylenically unsaturated acceptor monomers, and is substantially free of maleate type monomers and fumarate type monomers, and (c) polymerizing the mixture resulting from step (b) in the presence of a free radical polymerization initiator. The polymerization is carried out in the substantial absence of Lewis acids and/or transition metals. The isobutylene type monomer is present at a molar excess of at least 10 mol % based on the molar concentration of monomers in the ethylenically unsaturated monomer composition. The ethylenically unsaturated acceptor monomers are present in an amount of at least 15 mol % of the total monomer composition.
一种制备共聚物组合物的方法,包括以下步骤:(a)提供包括
异丁烯型单体的供体单体组合物;(b)将供体单体组合物与包括一种或多种
乙烯基不饱和受体单体且基本上不含
马来酸酯型单体和
富马酸酯型单体的
乙烯基不饱和单体组合物混合;(c)在自由基聚合
引发剂的存在下聚合步骤(b)得到的混合物。聚合在基本上不含
路易斯酸和/或过渡
金属的情况下进行。
异丁烯型单体的摩尔过量至少为
乙烯基不饱和单体组合物中单体的摩尔浓度的10摩尔%。
乙烯基不饱和受体单体的量至少为总单体组合物的15摩尔%。