Structure effect and orientation distribution of azo dyes on optical anisotropy of dyed PVA-films
The derivatives of phenylazobenzoic, phenylazosalicylic acids and azobenzeneazonaphthalene were synthesized and employed to prepare polarizing films based on polyvinyl alcohol (PVA). The single-piece transmittance (T0), polarizing efficiency (PE), dichroic ratio (Rd) of films and order parameter...
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| Datum: | 2013 |
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| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | English |
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Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2013
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| Schriftenreihe: | Semiconductor Physics Quantum Electronics & Optoelectronics |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/117697 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Structure effect and orientation distribution of azo dyes on optical anisotropy of dyed PVA-films / .N. Filippovich, N.G. Ariko, H.A. Almodarresiyeh, S.N. Shahab, P.M. Malashko, V.E. Agabekov // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2013. — Т. 16, № 2. — С. 220-23. — Бібліогр.: 7 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | The derivatives of phenylazobenzoic, phenylazosalicylic acids and
azobenzeneazonaphthalene were synthesized and employed to prepare polarizing films
based on polyvinyl alcohol (PVA). The single-piece transmittance (T0), polarizing
efficiency (PE), dichroic ratio (Rd) of films and order parameter of dyes (Sdye) were
calculated. It was found that parameters Rd and Sdye increased as electron-donating of
substituents in molecules of phenylazobenzoic and phenylazosalicylic acids derivatives
was grown, and the polarizing efficiency of film increased with increasing the order
parameter of dye. Development of PVA films dyed with the derivatives of
phenylazosalicylic acid and azobenzeneazonaphthalene allowed to obtain polarizers for
near UV and visible range of spectrum, respectively. It was also developed a broadband
polarizer for 300-610 nm. |
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