New conjugated polymers comprisingortho-phenylazonaphthols: Synthesis and chromogenic behaviors

Autor:	Taek Seung Lee, Moon Soo Choi, Dongwook Kim, Jung Hyo Lee
Rok vydání:	2007
Předmět:	Polymers and Plastics Organic Chemistry Conjugated system Fluorene Tautomer chemistry.chemical_compound Photochromism Suzuki reaction chemistry Phenylene Bathochromic shift Polymer chemistry Materials Chemistry Methyl methacrylate
Zdroj:	Journal of Polymer Science Part A: Polymer Chemistry. 45:4430-4440
ISSN:	1099-0518 0887-624X
Popis:	A new series of poly(ortho-phenylazonaphthol) derivatives linked with a phenylene or fluorene repeat unit was synthesized using the Suzuki cross-coupling reaction and characterized. The synthesized polymers can be categorized by their structures, with a free hydroxyl group and with a t-Boc-blocked hydroxyl group, which exhibited completely different UV-vis absorption properties according to the allowed or forbidden tautomerism. In both cases, a pronounced color change to deep violet (bathochromic shift) was induced upon exposure to fluoride anion, presumably because of electron transfer between the hydroxyl group and the fluoride anion. Interestingly, the chromogenic pattern could be produced directly by UV irradiation through a photomask on the flexible nanofiber web electrospun from poly(methyl methacrylate) blended with t-Boc-protected Polymer 8 and photoinduced acid generator. © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 4430–4440, 2007
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cbc0406cb511f1c8350e269a900535c5 https://doi.org/10.1002/pola.22192 Zobrazit plný text záznamu Plný text