Hydroxyl-containing bis(alkenyl) ethers can be incorporated into the backbone of polythioether prepolymers and can be used as curing agents in thiol-terminated polythioether prepolymer compositions. Cured sealants prepared using compositions containing hydroxyl-containing bis(alkenyl) ether-containing polythioether prepolymers and/or hydroxyl-containing bis(alkenyl) ether curing agents exhibit improved physical properties such as rapid curing and compatibility with fillers suitable for use in aerospace sealant applications.
含有羟基的双(烯基)醚可以被纳入聚
硫醚预聚物的骨架中,并可用作
硫烷基终止的聚
硫醚预聚物组合物中的固化剂。使用含有羟基的双(烯基)醚的聚
硫醚预聚物和/或含有羟基的双(烯基)醚固化剂制备的固化密封剂表现出改善的物理性能,如快速固化和与适用于航空密封剂应用的填充剂相容性。