Research output: Contribution to journal › Article › peer-review
Ag(0) Nanoparticles Stabilized with Poly(Ethylene Glycol)s Modified with Amino Groups : Formation and Properties in Solutions. / Gubarev, A. S.; Lezov, A. A.; Mikhailova, M. E.; Senchukova, A. S.; Ubyivovk, E. V.; Nekrasova, T. N.; Girbasova, N. V.; Bilibin, A. Yu; Tsvetkov, N. V.
In: Colloid Journal, Vol. 81, No. 3, 01.05.2019, p. 226-234.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Ag(0) Nanoparticles Stabilized with Poly(Ethylene Glycol)s Modified with Amino Groups
T2 - Formation and Properties in Solutions
AU - Gubarev, A. S.
AU - Lezov, A. A.
AU - Mikhailova, M. E.
AU - Senchukova, A. S.
AU - Ubyivovk, E. V.
AU - Nekrasova, T. N.
AU - Girbasova, N. V.
AU - Bilibin, A. Yu
AU - Tsvetkov, N. V.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - Reducing and stabilizing abilities of three poly(ethylene glycol) (PEG) samples modified with primary amino groups in one or two terminal positions of the polymer chains, as well as with dendrons based on L-aspartic acid in both terminal positions of the polymer chains, have been studied. Stable dispersions of silver nanoparticles have been formed at room temperature in aqueous solutions of AgNO3 in the presence of the modified PEGs without additional reducing agents. Spectrophotometric examinations have shown that an increase in the number of amino groups per polymer molecule results in accelerating the formation of nanoparticles and improving the stabilizing ability of the modified PEGs. Molecular hydrodynamic methods (analytical centrifugation and dynamic light scattering) have been used to determine the absolute values of the molecular mass of silver nanoparticles stabilized with dendronized PEGs and the hydrodynamic sizes of the particles. Molecular hydrodynamics and electron microscopy have yielded interconsistent estimates of silver nanoparticle sizes.
AB - Reducing and stabilizing abilities of three poly(ethylene glycol) (PEG) samples modified with primary amino groups in one or two terminal positions of the polymer chains, as well as with dendrons based on L-aspartic acid in both terminal positions of the polymer chains, have been studied. Stable dispersions of silver nanoparticles have been formed at room temperature in aqueous solutions of AgNO3 in the presence of the modified PEGs without additional reducing agents. Spectrophotometric examinations have shown that an increase in the number of amino groups per polymer molecule results in accelerating the formation of nanoparticles and improving the stabilizing ability of the modified PEGs. Molecular hydrodynamic methods (analytical centrifugation and dynamic light scattering) have been used to determine the absolute values of the molecular mass of silver nanoparticles stabilized with dendronized PEGs and the hydrodynamic sizes of the particles. Molecular hydrodynamics and electron microscopy have yielded interconsistent estimates of silver nanoparticle sizes.
KW - SILVER NANOPARTICLES
KW - SIZE
KW - REDUCTION
KW - METHACRYLATE
KW - COPOLYMERS
KW - SCATTERING
KW - POLYMERS
KW - HYDROGEN
KW - CITRATE
KW - ACID
UR - http://www.scopus.com/inward/record.url?scp=85066937189&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/ag0-nanoparticles-stabilized-polyethylene-glycols-modified-amino-groups-formation-properties-solutio
U2 - 10.1134/S1061933X19030062
DO - 10.1134/S1061933X19030062
M3 - Article
AN - SCOPUS:85066937189
VL - 81
SP - 226
EP - 234
JO - Colloid Journal
JF - Colloid Journal
SN - 1061-933X
IS - 3
ER -
ID: 42865541