A process for the cross-linking or chain-extension of hydrocarbon polymers which contain ethylenically unsaturated groups which comprises forming an intimate mixture of the polymer with a mono-sulphonyloxycarbamate of the formula: A -- O -- CO -- NH -- O -- SO.sub.2 R (1) wherein A is an alkyl group, a cycloalkyl group, an alkenyl group, a substituted alkyl group, a substituted aryl group or a heterocyclic group, and R is an optionally substituted alkyl or aryl group. The process is useful for natural and synthetic rubbers. The rate and extent of cross linking may be modified by the additives such as tertiary amines or conventional rubber additives e.g. tetramethyl and zinc diethyl dithiocarbamates, which contain tertiary amino groups.
                            一种用于交联或链延伸含有
乙烯基未饱和基团的烃类聚合物的方法,包括将聚合物与公式为A-O-CO-NH-O-SO2R(1)的单磺酰氧基
氨基甲酸酯形成混合物。其中,A是烷基、环烷基、烯丙基、取代烷基、取代芳基或杂环基,R是可选的取代烷基或芳基。该方法适用于天然和合成橡胶。通过添加剂(如三级胺或含有三级
氨基的传统橡胶添加剂,例如四甲基和
二乙基二
硫代
氨基甲酸盐)可以改变交联的速率和程度。