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Photochemical behavior of poly(ethylacryloylacetate) and poly(acryloylacetone) films

✍ Scribed by Seizo Masuda; Nadejda Sertova; Ivan Petkov

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 162 KB
Volume: 35
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(199712)35:17<3683::aid-pola7>3.0.co;2-t

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✦ Synopsis

Films of poly(ethylacryloylacetate) (PEAA) and poly(acryloylacetone) (PAA) were subjected to UV irradiation (l Å 254 nm) at room temperature. The photoinduced structure transfer from cis-enol onto a diketo forms has been investigated. The structure transfer caused by UV light was found to be slower than for the corresponding process in solution. The spectral investigations (UV, IR) showed reversible process of photoketonization. The results were analyzed in terms of the model for the participation of the trans-enol form in the process of the ketonization. Based on the results obtained, some general conclusions were made about the organization of the units in the polymer chain.

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