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
Mitrić, Miodrag
Popović, Maja
Rakočević, Zlatko Lj.
Kalagasidis Krušić, Melina
Kačarević-Popović, Zorica M.
Article (Published version)
Metadata
Show full item recordAbstract
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. (C) 2015 Society of Plastics Engineers
Source:
Polymer Composites, 2017, 38, 5, 1014-1026Funding / projects:
- Functional, Functionalized and Advanced Nanomaterials (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45005)
DOI: 10.1002/pc.23665
ISSN: 0272-8397; 1548-0569
WoS: 000400995200022
Scopus: 2-s2.0-84940943668
Collections
Institution/Community
VinčaTY - JOUR AU - Spasojević, Jelena P. AU - Radosavljević, Aleksandra AU - Krstić, Jelena AU - Mitrić, Miodrag AU - Popović, Maja AU - Rakočević, Zlatko Lj. AU - Kalagasidis Krušić, Melina AU - Kačarević-Popović, Zorica M. PY - 2017 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1562 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. (C) 2015 Society of Plastics Engineers T2 - Polymer Composites T1 - Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel VL - 38 IS - 5 SP - 1014 EP - 1026 DO - 10.1002/pc.23665 ER -
@article{ author = "Spasojević, Jelena P. and Radosavljević, Aleksandra and Krstić, Jelena 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. (C) 2015 Society of Plastics Engineers", journal = "Polymer Composites", title = "Structural Characteristics and Bonding Environment of Ag Nanoparticles Synthesized by Gamma Irradiation Within Thermo-Responsive Poly(N-isopropylacrylamide) Hydrogel", volume = "38", number = "5", pages = "1014-1026", doi = "10.1002/pc.23665" }
Spasojević, J. P., Radosavljević, A., Krstić, J., 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, 38(5), 1014-1026. https://doi.org/10.1002/pc.23665
Spasojević JP, Radosavljević A, Krstić J, 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 .
Spasojević, Jelena P., Radosavljević, Aleksandra, Krstić, Jelena, 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 . .