Exploration for decreasing the volume shrinkage for photopolymerization

This article explored one method to decrease the volume shrinkage for photopolymerization including synthesis of a series of methacrylate–vinyl ether hybrid monomer, combination initiator system and introduction of chain transfer agent. Its photopolymerization kinetics was monitored by Fourier transform real-time infrared spectroscopy (FTIR) and the volume shrinkage is measured by using laser displacement sensor (LDS), the adhesion strength is also evaluated. The results indicated that the volume shrinkage could be adjusted in some degree on demand which is good for adhesion strength.

► A series of methacrylate–vinyl ether hybrid monomer was synthesized successfully.
► The volume shrinkage is real time measured by laser displacement sensor (LDS).
► Combination of initiator and chain transfer agent could adjust volume shrinkage.
► Adhesion strength of new developed formula to PVC is improved obviously.