We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Enhanced photo-reactivity of polyanthracene in the VIS region.
- Authors
Bruzon, Dwight Angelo; De Jesus, Anna Pamela; Bautista, Chris Dion; Martinez, Imee Su; Paderes, Monissa C.; Tapang, Giovanni A.
- Abstract
The wavelength-dependent photo-reactivity of polyanthracene was explored upon UV-C and VIS light irradiation. The material was prepared via one-pot chemical oxidation route using FeCl3 as oxidizing agent. A decrease in surface hydrophobicity of a polyanthracene-coated poly(methylmethacrylate) substrate from 109.11° to 60.82° was observed upon UV-C exposure for 48 hrs which was attributed to increase in oxygen content at the surface, as validated by energy dispersive X-ray spectroscopy. Upon exposure to ultraviolet-visible LEDs, photo-dimerization of polyanthracene in solution occurred and was monitored using UV-VIS spectroscopy. The photo-dimer product formation decreased from 381 nm to 468 nm and was found to be higher for the polyanthracene material compared to the monomer anthracene. At 381 nm, photo-dimerization of the material was found to be approx. 4x more efficient than the non-substituted monomer counterpart. Results obtained show that photo-dimerization of polyanthracene will proceed upon exposure with visible light LEDs with reduction in efficiency at longer wavelengths. To compensate, irradiation power of the light source and irradiation time were increased.
- Subjects
ENERGY dispersive X-ray spectroscopy; ANTHRACENE; ANTHRACENE derivatives; PHOTOREDUCTION; METHYL methacrylate; OXIDIZING agents; VISIBLE spectra; LIGHT sources
- Publication
PLoS ONE, 2022, Vol 17, Issue 7, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0271280