Measurement and Management of Stress Development in Photopolymer Networks

The formation of glassy, high modulus polymer networks with conventional crosslinking monomers is accompanied by significant volumetric shrinkage that in turn, leads to the development of internal and external stresses. The analysis of conversion-dependent stress evolution, including real-time measurement several critical factors associated with stress development, will be detailed along with some examples of novel polymeric materials that provide either chemical or physical mechanisms for stress reduction.