Abstract

The vibrational overtone spectra of ethylene glycol diacrylate (EGDA) and ethylene glycol dimethacrylate (EGDMA) monomers and corresponding polymers were recorded in the spectral range 4500-15000 cm^-1. This spectral range encompasses the first through the fourth CH stretch vibrational overtone transitions. The CH stretch spectral features were assigned by a comparison of the number and type of different CH oscillators in the two compounds and a comparison to the spectra of acrylic acid and ethylene glycol diisobutyrate. Peaks corresponding to transitions for the vinyl, methylenic, and methyl types of the CH stretch were identified. The anharmonicities and mechanical frequencies for each progression in each monomer and polymer sample are reported. From the integrated areas of the vinyl and methyl/methylenic peaks for the first, second, third, and fourth vibrational overtone transitions of EGDMA, the degree of polymerization was calculated. These results were compared to the degree of polymerization determined from IR spectroscopy.

Femtosecond laser direct writing of metal microstructure in a stretchable poly(ethylene glycol) diacrylate (PEGDA) hydrogel

Mitsuhiro Terakawa, Maria Leilani Torres-Mapa, Akihiro Takami, Dag Heinemann, Nikolay N. Nedyalkov, Yasutaka Nakajima, Anton Hördt, Tammo Ripken, and Alexander Heisterkamp
Opt. Lett. 41(7) 1392-1395 (2016)

Photoacoustic spectroscopy of vibrational overtones in polyatomic molecules

Howard L. Fang and Robert L. Swofford
Appl. Opt. 21(1) 55-60 (1982)

Laser-induced breakdown spectroscopy with laser irradiation resonant with vibrational transitions

Ani Khachatrian and Paul J. Dagdigian
Appl. Opt. 49(13) C1-C7 (2010)

Infrared radio-frequency double-resonance spectroscopy of molecular vibrational-overtone bands using a Fabry–Perot cavity-absorption cell

Chikako Ishibashi, Ryuji Saneto, and Hiroyuki Sasada
J. Opt. Soc. Am. B 18(7) 1019-1030 (2001)

Absorption and scattering in low-loss polymer optical waveguides

Claire Pitois, Anders Hult, and Dorothea Wiesmann
J. Opt. Soc. Am. B 18(7) 908-912 (2001)