Open AccessMeasurement of polymerization-shrinkage evolution during curing in photopolymer with a white-light Fabry-Pérot interferometer
Author(s) -
Masaru Kawana,
Jun-ichiro Takahashi,
Jinxin Guo,
Yasuo Tomita
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.015356
Subject(s) - shrinkage , photopolymer , materials science , fabry–pérot interferometer , curing (chemistry) , polymerization , optics , polymer , holography , interferometry , white light interferometry , composite material , optoelectronics , wavelength , physics
We propose a simple method of measuring polymerization-shrinkage evolution during curing in photopolymer. The real-time spectral fringe analysis of a broadband beam transmitted through a Fabry-Pérot etalon supported by a photopolymer film provides the shrinkage evolution during curing. For the proof-of-principle demonstration a blue-sensitized nanoparticle-polymer composite material is used. It is shown that the measured shrinkage dynamics are well correlated with the photo-calorimetric conversion dynamics of monomer to polymer. We also discuss a discrepancy in steady-state shrinkage between our proposed and holographic Bragg-angle detuning measurements.