Kinetics of photopolymerization of acrylates studied with a cure monitor and photoDSC

Igor V. Khudyakov; Jodi C. Legg; Michael B. Purvis; Bob James Overton

doi:10.1117/12.372767

29 December 1999 Kinetics of photopolymerization of acrylates studied with a cure monitor and photoDSC

Igor V. Khudyakov, Jodi C. Legg, Michael B. Purvis, Bob James Overton

Proceedings Volume 3848, Optical Fiber Reliability and Testing; (1999) https://doi.org/10.1117/12.372767
Event: Photonics East '99, 1999, Boston, MA, United States

Abstract

Photopolymerization of a number of neat acrylate monomers used in polymer coatings of optical fiber was studied with photoDSC and with a cure monitor using a fluorescent probe. Acrylates had functionality from one to six. PhotoDSC results show that conversion of monomers ranges from 40 to 100% depending upon functionality and structure of a monomer. Kinetics of hardening of a sample under light at ambient temperature was nicely fit into two-exponential law; rate constants k₁ and k₂ in this empirical analysis are in the range 0.5 - 35 min^-1. Dependence of rate of polymerization and conversion upon functionality of a monomer is discussed. Both cure monitor and photoDSC can be successfully used for testing of liquid coatings. It was demonstrated, that an application of a moderate permanent magnetic field increases rate of cure of coating up till 20%.

Citation Download Citation

Igor V. Khudyakov, Jodi C. Legg, Michael B. Purvis, and Bob James Overton "Kinetics of photopolymerization of acrylates studied with a cure monitor and photoDSC", Proc. SPIE 3848, Optical Fiber Reliability and Testing, (29 December 1999); https://doi.org/10.1117/12.372767

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