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Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel

Authorized Users Only
2017
Authors
Spasojević, Jelena P.
Radosavljević, Aleksandra
Krstić, Jelena I.
Mitrić, Miodrag
Popović, Maja
Rakočević, Zlatko Lj.
Kalagasidis-Krušić, Melina
Kačarević-Popović, Zorica M.
Article (Published version)
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Abstract
To produce well-defined metal clusters stabilized in protective matrix, poly(N-isopropylacrylamide) (PNi-PAAm) hydrogel with different initial concentration of polymer was used as nanoreactor. The in situ synthesis of well dispersed silver nanoparticles (AgNPs) was performed by gamma irradiation. The obtained AgNPs are spherical in shape with the diameter less than 20 nm. Crystalline properties of nanoparticles such as size, texture coefficient, strain, stress, lattice parameter, d-spacing, and dislocation density have been calculated using XRD data. Results confirm that the changes of lattice parameter of crystalline AgNPs sensitively reflect their state of strain and stress depending on the formation conditions (i.e., on the concentration of PNiPAAm) and on the diameter of AgNPs. The negative lattice strain and compression stress were observed for the smaller AgNPs (lattice contraction), while for the larger AgNPs are positively strained and under tensile stress (lattice expansion). ...XPS spectra revealed the donor-acceptor type of interaction between carbonyl oxygen from PNiPAAm and AgNPs (positive shift of high BE component of O 1s and negative shift of Ag 3d BE). The greater dislocation density of smaller AgNPs incorporated in more concentrated PNiPAAm, resulted in more binding sites and stronger interaction with polymer.

Source:
Polymer Composites, 2017, 38, 5, 1014-1026
Publisher:
  • Wiley, Hoboken
Funding / projects:
  • Functional, Functionalized and Advanced Nanomaterials (RS-45005)

DOI: 10.1002/pc.23665

ISSN: 0272-8397

WoS: 000400995200022

Scopus: 2-s2.0-84940943668
[ Google Scholar ]
9
6
URI
http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3718
Collections
  • Radovi istraživača / Researchers’ publications (TMF)
Institution/Community
Tehnološko-metalurški fakultet
TY  - JOUR
AU  - Spasojević, Jelena P.
AU  - Radosavljević, Aleksandra
AU  - Krstić, Jelena I.
AU  - Mitrić, Miodrag
AU  - Popović, Maja
AU  - Rakočević, Zlatko Lj.
AU  - Kalagasidis-Krušić, Melina
AU  - Kačarević-Popović, Zorica M.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3718
AB  - To produce well-defined metal clusters stabilized in protective matrix, poly(N-isopropylacrylamide) (PNi-PAAm) hydrogel with different initial concentration of polymer was used as nanoreactor. The in situ synthesis of well dispersed silver nanoparticles (AgNPs) was performed by gamma irradiation. The obtained AgNPs are spherical in shape with the diameter less than 20 nm. Crystalline properties of nanoparticles such as size, texture coefficient, strain, stress, lattice parameter, d-spacing, and dislocation density have been calculated using XRD data. Results confirm that the changes of lattice parameter of crystalline AgNPs sensitively reflect their state of strain and stress depending on the formation conditions (i.e., on the concentration of PNiPAAm) and on the diameter of AgNPs. The negative lattice strain and compression stress were observed for the smaller AgNPs (lattice contraction), while for the larger AgNPs are positively strained and under tensile stress (lattice expansion). XPS spectra revealed the donor-acceptor type of interaction between carbonyl oxygen from PNiPAAm and AgNPs (positive shift of high BE component of O 1s and negative shift of Ag 3d BE). The greater dislocation density of smaller AgNPs incorporated in more concentrated PNiPAAm, resulted in more binding sites and stronger interaction with polymer.
PB  - Wiley, Hoboken
T2  - Polymer Composites
T1  - Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel
EP  - 1026
IS  - 5
SP  - 1014
VL  - 38
DO  - 10.1002/pc.23665
UR  - conv_5305
ER  - 
@article{
author = "Spasojević, Jelena P. and Radosavljević, Aleksandra and Krstić, Jelena I. and Mitrić, Miodrag and Popović, Maja and Rakočević, Zlatko Lj. and Kalagasidis-Krušić, Melina and Kačarević-Popović, Zorica M.",
year = "2017",
abstract = "To produce well-defined metal clusters stabilized in protective matrix, poly(N-isopropylacrylamide) (PNi-PAAm) hydrogel with different initial concentration of polymer was used as nanoreactor. The in situ synthesis of well dispersed silver nanoparticles (AgNPs) was performed by gamma irradiation. The obtained AgNPs are spherical in shape with the diameter less than 20 nm. Crystalline properties of nanoparticles such as size, texture coefficient, strain, stress, lattice parameter, d-spacing, and dislocation density have been calculated using XRD data. Results confirm that the changes of lattice parameter of crystalline AgNPs sensitively reflect their state of strain and stress depending on the formation conditions (i.e., on the concentration of PNiPAAm) and on the diameter of AgNPs. The negative lattice strain and compression stress were observed for the smaller AgNPs (lattice contraction), while for the larger AgNPs are positively strained and under tensile stress (lattice expansion). XPS spectra revealed the donor-acceptor type of interaction between carbonyl oxygen from PNiPAAm and AgNPs (positive shift of high BE component of O 1s and negative shift of Ag 3d BE). The greater dislocation density of smaller AgNPs incorporated in more concentrated PNiPAAm, resulted in more binding sites and stronger interaction with polymer.",
publisher = "Wiley, Hoboken",
journal = "Polymer Composites",
title = "Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel",
pages = "1026-1014",
number = "5",
volume = "38",
doi = "10.1002/pc.23665",
url = "conv_5305"
}
Spasojević, J. P., Radosavljević, A., Krstić, J. I., Mitrić, M., Popović, M., Rakočević, Z. Lj., Kalagasidis-Krušić, M.,& Kačarević-Popović, Z. M.. (2017). Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel. in Polymer Composites
Wiley, Hoboken., 38(5), 1014-1026.
https://doi.org/10.1002/pc.23665
conv_5305
Spasojević JP, Radosavljević A, Krstić JI, Mitrić M, Popović M, Rakočević ZL, Kalagasidis-Krušić M, Kačarević-Popović ZM. Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel. in Polymer Composites. 2017;38(5):1014-1026.
doi:10.1002/pc.23665
conv_5305 .
Spasojević, Jelena P., Radosavljević, Aleksandra, Krstić, Jelena I., Mitrić, Miodrag, Popović, Maja, Rakočević, Zlatko Lj., Kalagasidis-Krušić, Melina, Kačarević-Popović, Zorica M., "Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel" in Polymer Composites, 38, no. 5 (2017):1014-1026,
https://doi.org/10.1002/pc.23665 .,
conv_5305 .

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