Influence of Photosensitive Group Concentration on Birefringence Induced in Benzaldehyde Polymers

Autor:	U. V. Mahilny, A. I. Stankevich, A. V. Trofimova
Rok vydání:	2014
Předmět:	chemistry.chemical_classification Birefringence Materials science Absorption spectroscopy Linear polarization Polymer Dichroism Condensed Matter Physics Photochemistry Benzaldehyde chemistry.chemical_compound chemistry Thermal stability Spectroscopy Macromolecule
Zdroj:	Journal of Applied Spectroscopy. 80:824-828
ISSN:	1573-8647 0021-9037
Popis:	Induction of optical anisotropy in benzaldehyde polymer layers by linearly polarized UV radiation was investigated experimentally. Negative dichroism in absorption spectra and strong negative birefringence (–2 · 10–3) were related to the presence of an oriented ensemble of residual benzaldehyde groups. The thermal stability of photoinduced birefringence at high photosensitive group concentration was associated with a high density of photocross-links formed between macromolecules.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c9cf3089586040e6f9dacabd0da26274 https://doi.org/10.1007/s10812-014-9850-8 Zobrazit plný text záznamu Plný text ve formátu PDF