Polymer synthesis, or in this case prepolymer synthesis is not usually easy. For starters, you will need at minimum a pre-polymer and a photoinitiator. Acrylate and vinyl esters are commonly used as prepolymers and a large list of photoinitiators is available here.

A good combo is Phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide and 1,6-Hexanediol diacrylate.