Holographic determination of the irradiance dependence of linear-chain polymerization rates in photopolymer dry films

Holographic photopolymer materials: nonlocal polymerization-driven diffusion under nonideal kinetic conditions

“…However, as we indicated in Section 1, experimental results 6,15,16 show deviations from this relationship and the powers to which each of the above terms is raised seem to vary. In fact it is known that in the most general case the propagation rate is of the form 14,15 …”

“…14,15,18 In some limiting cases it is possible to determine approximate models for suitable values (or ranges of values) of ␤. We now examine two particular cases.…”

“…However, based on experimental observations it has been reported that the value of ␥ can range between 0.5 Ͻ ␥ Ͻ 1.5. 14,15 Based on experimental observations 6,16 it has also been noted that the rate of polymerization changes throughout the course of each exposure. In one previous publication 6 it was reported that, when fitting growth curves by use of a polynomial technique at the start of exposure, the resulting value was found to be approximately ten times greater than the value estimated when fitting the full growth curve by use of the least-squares technique.…”

Extended model of the photoinitiation mechanisms in photopolymer materials

“…While significant progress has been made in the work presented here, [1][2][3][4][5][6][7][8]11,13,14 much remains to be done. Most obviously, the process of intersystem crossing must be more physically modeled and the fraction parameter ⌿ must be eliminated.…”

Analysis of the photoabsorptive behavior of two different photosensitizers in a photopolymer material

“…Such materials have received much attention in the literature [1][2][3][4][5][6][7][8][9][10][11] and are relatively simple to work with. In particular, in this paper our aim is to increase our understanding of what takes place inside the material during exposure when using different photosensitizers.…”