RAPID CURE POLYMERIC RESINS

摘要

A polysulfide material having reactive vinyl end groups and a method of making a vinyl end-capped polysulfide material are described. The vinyl end-capped polysulfide material has potential applications as a sealant, an adhesive, a coating, a caulking, or the like. In a specific example, the polysulfide material may be used as a precursor material for a sealant resin in the manufacturing of an integral fuel tank of an aircraft. An example method for making polysulfide materials includes contacting a vinyl-functionalized aryl halide and/or a vinyl-functionalized heteroaryl halide with dithiols and/or trithiols in the presence of an organic solvent.

主权项

1. A polymer of formula (I): wherein: each instance of R1 is -alkyl-O-alkyl-O-alkyl-; each instance of R2 is the same or different and is selected from each instance of R24 is the same or different and is selected from hydrogen (H), alkyl, or alkoxy; “Linker” is of formula (II): c is less than 1.0; d is 0 when c is 0; and a+b+d is from about 7 to about 38.