22. A process of forming essentially odorless solid polythioether which comprises I. Admixing: A. a terminally unsaturated polyene component which comprises the formula: (A= X)m wherein m is an integer of at least 2; wherein X is where f is an integer from 1 to 9; R is a radical selected from the group consisting of hydrogen, fluorine, chlorine, furyl, thienyl, pyridyl, phenyl and substituted phenyl, benzyl and substituted benzyl, alkyl and substituted alkyl, alkoxy and substituted alkoxy, cycloalkyl and substituted cycloalkyl; said substituents on said substituted members selected from the group consisting of nitro, chloro, fluoro, acetoxy, acetamide, phenyl, benzyl, alkyl, alkoxy and cycloalkyl; said alkyl and alkoxy having from one to nine carbon atoms and said cycloalkyl having from three to eight carbon atoms; wherein (A) is free of reactive carbon-to-carbon unsaturation; free of highly water-sensitive members; and is a polyvalent chamically compatible member of the group consisting of carbonate, carboxylate, carbonyl, ether, silane, silicate, phosphonate, phosphite, phosphate, alkyl and substituted alkyl, cycloalkyl and substitute cycloalkyl, aryl and substituted aryl, urethane and substituted urethane, urea and substituted urea, amine and substituted amine, amide and substituted amide, hydroxyl, heterocyclic carbon containing radical, and mixtures thereof; said substitutents on said members being defined above, said component having a molecular weight in the range from about 64 to 20,000; and a viscosity in the range from essentially 0 to 20 million centipoises at 70* C.; B. a polythiol component having a molecular weight in the range from about 50 to about 20,000 of the general formula: R8=SH)n wherein R8 is a polyvalent organic moiety free from reactive carbon-to-carbon unsaturation and n is at least 2, the sum of m and n being greater than 4, with the ene/thiol mole ratio being selected so as to provide a cross-linked solid, self-supporting cured product; and C. a photocuring rate accelerator, and thereafter II. exposing the mixture to actinic light.

23. A photocurable composition useful for obtaining an essentially odorless, solid polythioether, said photocurable composition consisting essentially of: A. a terminally unsaturated polyene component having the formula: