Changes in morphology and optical properties of polyvinyl alcohol foils induced by Congo red dye concentration and stretching degree
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Carmen Beatrice Zelinschi
und
Dana Ortansa Dorohoi
Abstract
To establish correlations between the optical and morphological properties of anisotropic polyvinyl alcohol (PVA) foils containing Congo red (CR) dye in various concentrations, characteristics such as degree of crystallinity, dichroic ratio, order parameter, birefringence, surface morphology, and three-dimensional texture parameters were estimated before and after stretching. An increase in morphological and optical anisotropy with the degree of stretching has been evidenced for both pure and CR-containing PVA foils, this behavior being facilitated by the presence of the dye. The study of these properties lays the foundation for understanding the circumstances in which PVA foils containing CR can be used as polarizing filters.
Acknowledgments
This work was partially supported by the European Social Fund in Romania, under the responsibility of the Managing Authority for the Sectoral Operational Programme for Human Resources Development 2007-2013, grant POSDRU/88/1.5/S/47646.
References
[1] Kocher C. Diss. ETH. 2003, 15043, 1–150.Suche in Google Scholar
[2] Pop V, Dorohoi DO, Cringeanu E. J. Macromol. Sci. B. 1994, 33, 373–375.Suche in Google Scholar
[3] Nechifor CD, Angheluta E, Dorohoi DO. Mater. Plast. 2010, 47, 164–166.Suche in Google Scholar
[4] Rogojanu A, Dascalu CF, Zelinschi BC, Caprosu M, Dorohoi DO. Spectrochim. Acta Mol. Biomol. Spectrosc. 2011, 81, 334–338.Suche in Google Scholar
[5] Dorohoi DO, Dumitrascu I, Dumitrascu L. Mater. Plast. 2008, 45, 106–108.Suche in Google Scholar
[6] Frid P, Anisimov SV, Popovic N. Brain Res. Rev. 2007, 53, 135–160.Suche in Google Scholar
[7] Beekman E, Kocher C, Kokil A, Zimmermann S, Weder C. J. Appl. Polym. Sci. 2002, 86, 1235–1239.Suche in Google Scholar
[8] Qi S, Zhang C, Yang X, Chen K, Zhang L, Yang G, Liang X, Xu T, Tian J. Opt. Mater. 2007, 29, 1348–1351.Suche in Google Scholar
[9] Aslanyan RR, Lobakova ES, Koroleva SY, Babusenko ES, Dallakyan GA. Moscow Univ. Biol. Sci. Bull. 2011, 66, 18–21.Suche in Google Scholar
[10] ISO 25178-2. 2009.Suche in Google Scholar
[11] D’Amato MJ, Marcus MS, Eriksson MA, Carpick RW. Appl. Phys. Lett. 2004, 85, 4738–4740.Suche in Google Scholar
[12] Brown CA, Johnsen WA, Hult KM. Int. J. Mach. Tools Manufact. 1998, 38, 663–637.Suche in Google Scholar
[13] Thulstrup EW, Michl Josef. J. Am. Chem. Soc. 1982, 104, 5594–5604.Suche in Google Scholar
[14] Breton J, Michel-Villaz M, Paillotin G. Biochim. Biophys.Acta (BBA) – Bioenerg. 1973, 314, 42–56.Suche in Google Scholar
©2014 by Walter de Gruyter Berlin/Boston
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- Changes in morphology and optical properties of polyvinyl alcohol foils induced by Congo red dye concentration and stretching degree
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Artikel in diesem Heft
- Frontmatter
- Review
- Organic semiconductors for device applications: current trends and future prospects
- Original articles
- An easy approach to fabricating HgS/chitosan nanocomposite films and their ability to sense triethylamine
- Changes in morphology and optical properties of polyvinyl alcohol foils induced by Congo red dye concentration and stretching degree
- Parameters characterizing the kinetics of the non-isothermal crystallization of polyamide 5,6 determined by differential scanning calorimetry
- Fabrication and modification of mixed matrix polyvinylchloride based heterogeneous cation exchange membrane by Ag nanolayer/plasma treatment: investigation of nanolayer deposition rate effect
- Performance study of polyurethane/silicon carbide composite repairing asphalt pavements
- Effect of different amounts of modified talc on the mechanical, thermal, and crystallization properties of poly(butylene succinate)
