A hydroxyl-functional polymer is reacted with a compound ZCO.N(H).sub.x.N(H).sub.x.CO.OR, where Z is halogen or aryloxy, x is 0 or 1 and R is hydrocarbon, and the reaction product is if necessary oxidized to give an azodicarboxylate functional polymer having the formula QOCO.N:N.CO.OR where Q is an inert polymer group. This polymer is used to react with ethylenically unsaturated natural or synthetic rubber so as to graft groups derived from the polymer on the rubber backbone.
一种羟基官能团聚合物与化合物ZCO.N(H).sub.x.N(H).sub.x.CO.OR反应,其中Z是卤素或芳氧基,x为0或1,R为碳氢化合物,必要时将反应产物氧化,得到具有公式QOCO.N:N.CO.OR的偶氮二
羧酸酯官能团聚合物,其中Q是惰性聚合物基团。该聚合物用于与具有
乙烯基不饱和性的天然或合成橡胶反应,以将来自聚合物的基团嫁接到橡胶主链上。