Determination of the polymerisation rate of a low-toxicity diacetone acrylamide-based holographic photopolymer using Raman spectroscopy

Authors

Dervil Cody, Technological University DublinFollow
Emilia Mihaylova, Technological University DublinFollow
Luke O'Neill, FOCAS Research Institute, Technological University DublinFollow
Izabela Naydenova, Centre for Industrial and Engineering Optics, Technological University DublinFollow

Document Type

Article

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

Optics, Polymer science, Materials engineering

Publication Details

Optical Materials 48:12-17

Abstract

The polymerisation rate of a low-toxicity Diacetone Acrylamide (DA)-based photopolymer has been measured for the first time using Raman spectroscopy. A value for the polymerisation rate of 0.020 s⁻¹ has been obtained for the DA photopolymer by modelling the polymerisation reaction dynamics as a stretched exponential or Kohlrausch decay function. This is significantly lower than the polymerisation rate of 0.100 s⁻¹ measured for the well known Acrylamide (AA)-based photopolymer composition. The effect of the additive glycerol on the polymerisation rate of the DA-based photopolymer has also been investigated. The inclusion of glycerol is observed to increase the rate of polymerisation of the DA photopolymer by up to 60%. It is also observed that the polymerisation rate of the DA photopolymer is less dependent on the recording intensity when glycerol is present.

DOI

https://doi.org/10.1016/j.optmat.2015.07.016

Recommended Citation

Cody, D., Mihaylove, E. & O'Neill, Luke. (2016). Determination of the polymerisation rate of a low-toxicity diacetone acrylamide-based holographic photopolymer using Raman spectroscopy. Optical Materials, vol. 48, Oct. 2015, pp. 12-17. doi.org/10.1016/j.optmat.2015.07.016