Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method
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Radosavljević, AleksandraBožanić, Dušan K.
Bibić, Nataša M.
Mitrić, Miodrag
Kačarević-Popović, Zorica M.
Nedeljković, Jovan
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Gamma-irradiation induced reduction of gold (Au) ions was performed in aqueous poly(vinyl alcohol) (PVA) solution. PVA/Au nanocomposites with different contents of inorganic phase were prepared by solvent evaporation. The colloids and corresponding nanocomposites show visible light absorption with strong excitonic peak in the wavelength range from 520 to 550 nm. Morphological and structural characterizations of gold nanoparticles (Au NPs) and nanocomposites were performed by TEM, XRD, and FTIR measurements. Also, Mie and Maxwell-Garnett theories were applied to calculate optical properties of Au colloids and PVA/Au nanocomposites, respectively. The changes of heat resistance upon the increase of inorganic phase were correlated to the decrease in crystal perfection of polymer. Improvement of thermal stability of nanocomposites, compared with the neat PVA, was observed when the content of inorganic phase exceeds 1 wt %. (c) 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
Keywords:
Gamma-irradiation / Au nanoparticles / PVA / Au nanocomposites / optical properties / thermal propertiesSource:
Journal of Applied Polymer Science, 2012, 125, 2, 1244-1251Funding / projects:
- Materials of Reduced Dimensions for Efficient Light Harvesting and Energy conversion (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45020)
DOI: 10.1002/app.34992
ISSN: 0021-8995; 1097-4628
WoS: 000302350300050
Scopus: 2-s2.0-84859619513
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VinčaTY - JOUR AU - Radosavljević, Aleksandra AU - Božanić, Dušan K. AU - Bibić, Nataša M. AU - Mitrić, Miodrag AU - Kačarević-Popović, Zorica M. AU - Nedeljković, Jovan PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4772 AB - Gamma-irradiation induced reduction of gold (Au) ions was performed in aqueous poly(vinyl alcohol) (PVA) solution. PVA/Au nanocomposites with different contents of inorganic phase were prepared by solvent evaporation. The colloids and corresponding nanocomposites show visible light absorption with strong excitonic peak in the wavelength range from 520 to 550 nm. Morphological and structural characterizations of gold nanoparticles (Au NPs) and nanocomposites were performed by TEM, XRD, and FTIR measurements. Also, Mie and Maxwell-Garnett theories were applied to calculate optical properties of Au colloids and PVA/Au nanocomposites, respectively. The changes of heat resistance upon the increase of inorganic phase were correlated to the decrease in crystal perfection of polymer. Improvement of thermal stability of nanocomposites, compared with the neat PVA, was observed when the content of inorganic phase exceeds 1 wt %. (c) 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 T2 - Journal of Applied Polymer Science T1 - Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method VL - 125 IS - 2 SP - 1244 EP - 1251 DO - 10.1002/app.34992 ER -
@article{ author = "Radosavljević, Aleksandra and Božanić, Dušan K. and Bibić, Nataša M. and Mitrić, Miodrag and Kačarević-Popović, Zorica M. and Nedeljković, Jovan", year = "2012", abstract = "Gamma-irradiation induced reduction of gold (Au) ions was performed in aqueous poly(vinyl alcohol) (PVA) solution. PVA/Au nanocomposites with different contents of inorganic phase were prepared by solvent evaporation. The colloids and corresponding nanocomposites show visible light absorption with strong excitonic peak in the wavelength range from 520 to 550 nm. Morphological and structural characterizations of gold nanoparticles (Au NPs) and nanocomposites were performed by TEM, XRD, and FTIR measurements. Also, Mie and Maxwell-Garnett theories were applied to calculate optical properties of Au colloids and PVA/Au nanocomposites, respectively. The changes of heat resistance upon the increase of inorganic phase were correlated to the decrease in crystal perfection of polymer. Improvement of thermal stability of nanocomposites, compared with the neat PVA, was observed when the content of inorganic phase exceeds 1 wt %. (c) 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012", journal = "Journal of Applied Polymer Science", title = "Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method", volume = "125", number = "2", pages = "1244-1251", doi = "10.1002/app.34992" }
Radosavljević, A., Božanić, D. K., Bibić, N. M., Mitrić, M., Kačarević-Popović, Z. M.,& Nedeljković, J.. (2012). Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method. in Journal of Applied Polymer Science, 125(2), 1244-1251. https://doi.org/10.1002/app.34992
Radosavljević A, Božanić DK, Bibić NM, Mitrić M, Kačarević-Popović ZM, Nedeljković J. Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method. in Journal of Applied Polymer Science. 2012;125(2):1244-1251. doi:10.1002/app.34992 .
Radosavljević, Aleksandra, Božanić, Dušan K., Bibić, Nataša M., Mitrić, Miodrag, Kačarević-Popović, Zorica M., Nedeljković, Jovan, "Characterization of poly(vinyl alcohol)/gold nanocomposites obtained by in situ gamma-irradiation method" in Journal of Applied Polymer Science, 125, no. 2 (2012):1244-1251, https://doi.org/10.1002/app.34992 . .