Spectroscopic studies of the mechanism of reversible photodegradation of 1-substituted aminoanthraquinone-doped polymers
Abstract
The mechanism of reversible photodegradation of 1-substituted aminoanthraquinones doped into poly(methyl methacrylate) and polystyrene is investigated. Time-dependent density functional theory is employed to predict the transition energies and corresponding oscillator strengths of the proposed reversibly and irreversibly damaged dye species. Ultraviolet–visible and Fourier transform infrared (FTIR) spectroscopy are used to characterize which species are present. FTIR spectroscopy indicates that both dye and polymer undergo reversible photodegradation when irradiated with a visible laser. These findings suggest that photodegradation of 1-substituted aminoanthraquinones doped in polymers originates from interactions between dyes and photoinduced thermally degraded polymers, and the metastable product may recover or further degrade irreversibly.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 18, 2016
- Source ID
- 10.1063/1.4943963
Entities
People
- Ankita Bhuyan
- Guy Koeckelberghs
- Joost Steverlynck
- Koen Clays
- Kyle Schademan
- Mark G. Kuzyk
- Matthew McCluskey
- Sheng-Ting Hung
Organizations
- Air Force Office of Scientific Research
- Katholieke Universiteit Leuven
- Washington State University