Photolysis and emission spectra of substituted polyacrylophenones

✍ Scribed by Ivan Lukáč; Pavol Hrdlovič

• Book ID: 103071959
• Publisher: Elsevier Science
• Year: 1978
• Tongue: English
• Weight: 414 KB
• Volume: 14
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(78)90117-9

✦ Synopsis

, poly-4'-phenylacrylophenone, poly-2'-acrylonaphthone and copolymers of acrylophenone monomers with styrene and methyl methacrylate were prepared. Quantum yields of main chain scission in chlorobenzene by 313 nm radiation were t03 times lower for all homopolymers and copolymers studied than for polyacrylophenone. The emission spectra of the polymers, copolymers and model compounds were taken for films at 77 K. The 3',4'-dimethoxyacrylophenone, 4'-phenylacrylophenone and 2'-acrylonaphthone structural units exhibited poorly resolved emission spectra in homopolymer, eopolymer and model compound. No difference in the emission spectra of films and dispersed homopolymer or copolymer in a poly(methyl methacrylate) matrix was observed. The decay of the emission of all homopolymers and copolymers under study was exponential. the life-time exceeding 0.20 sec.