Oxidative photobleaching of substituted anthracenes in thin polymer films
Journal Article
·
· Journal of Physical Chemistry; (United States)
- Hewlett Packard Labs., Palo Alto, CA (USA)
The photochemical reaction of diphenylanthracene (DPA) and dimethylanthracene (DMA) in thin spin-cast films of various polymers in the presence of oxygen, with direct irradiation as well as triplet sensitization, is reported. Kinetic equations are derived and used in conjunction with the analytical results of Sheats, Diamond, and Smith to determine reaction parameters from the optical transmittance data. Triplet yields are about 40%. The oxidation rates are substantially lower than in solution, more so for DMA than for DPA. The rate for DPA in poly(ethyl methacrylate) (PEMA) is similar to that in poly(diphenylsiloxane) (PDPS), while in poly(butyl methacrylate) (PBMA) it is significantly faster.
- OSTI ID:
- 5478785
- Journal Information:
- Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 94:18; ISSN 0022-3654; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Polarized light-induced anisotropy in polymer films doped with azo dyes in the photostationary state studied by IR spectroscopy[Infrared]
Journal Article
·
Wed Nov 02 23:00:00 EST 1994
· Journal of Physical Chemistry; (United States)
·
OSTI ID:7079635
Polarized light-induced anisotropy in polymer films doped with azo dyes in the photostationary state studied by IR spectroscopy[Infrared]
Conference
·
Wed Jul 01 00:00:00 EDT 1998
·
OSTI ID:20034170
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ANTHRACENE
AROMATICS
CHEMICAL REACTIONS
CONDENSED AROMATICS
DATA
EXPERIMENTAL DATA
FILMS
HYDROCARBONS
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
PHOTOCHEMICAL REACTIONS
POLYMERS
THIN FILMS
400201* -- Chemical & Physicochemical Properties
ANTHRACENE
AROMATICS
CHEMICAL REACTIONS
CONDENSED AROMATICS
DATA
EXPERIMENTAL DATA
FILMS
HYDROCARBONS
INFORMATION
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
PHOTOCHEMICAL REACTIONS
POLYMERS
THIN FILMS