This invention relates to a class of alkenylated toluenediamines and phenylenediamines having at least one alkenyl group ortho to an amine group. More particularly the aryldiamines are represented by the formula: ##STR1## wherein R is hydrogen or C.sub.1 -C.sub.3 aliphatic, R.sub.1 is hydrogen, R.sub.2 is C.sub.2 -C.sub.4, aliphatic and R.sub.1 and R.sub.2 form an alkylene radical (CH.sub.2).sub.y wherein y=3 or 4, and x is one or two. The above described alkenylated aryldiamine, hereafter referred to as diamino-.beta.-alkyl styrenes, have been found to be well suited as antioxidants and as tri-and tetra functional chain extenders in forming polyurethane/urea elastomers systems and for providing pendant unsaturation for post curing and polymerization.
本发明涉及一类至少具有一个烯基基团正对胺基的甲
苯二胺和
苯二胺的化合物。更具体地说,这些芳基二胺由以下公式表示:##STR1## 其中R为氢或C.sub.1-C.sub.3脂肪基,R.sub.1为氢,R.sub.2为C.sub.2-C.sub.4脂肪基,且R.sub.1和R.sub.2形成一个碳链基团(CH.sub.2).sub.y,其中y=3或4,x为1或2。上述所述的烯基化芳基二胺,以下简称为二
氨基-β-烷基
苯乙烯,已被发现非常适用于作为
抗氧化剂以及在形成聚
氨酯/
脲弹性体系统中作为三元和四元功能链延伸剂,并且为后期固化和聚合提供了悬挂不饱和度。