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Radiolytic Syntheses of Nanoparticles and Inorganic-Polymer Hybrid Microgels

Abstract

In the second year of the project, we have gotten progress mainly in two directions. Firstly, for the first time, Prussian blue (PB) nanoparticles (NPs) were successfully synthesized by the partly radiolytic reduction of Fe3+ and Fe(CN)63 in the presence of poly(N-vinyl pyrrolidine) (PVP) under N2 atmospheres at room temperature. With the increase of the concentration of PVP, the size and the size distribution of the synthesized quasi-spherical PB NPs decreased obviously, leading to a hypsochromic shift on their peak position of the characteristic absorption. In the experiment, we further found that the smaller ones have a larger capacity to Cs+, suggesting that the application of PB NPs in curing thallotoxicosis may decrease the usage of PB for the patient to great extent. Secondly, through a series of preliminary experiments, we got a clear picture about the one-step radiolytic preparation of inorganic-poly(methacrylic acid-co-methyl methacrylate) hybrid microgels by surfactant-free emulsion polymerization. Besides, unpurified N-carbamothioylmethacrylamide was synthesized via the methacrylation of thiourea. These created favorable conditions for the one-step synthesis of metal sulfide-poly(methacrylic acid-co-methyl methacrylate) hybrid microgels by -irradiation and surfactant-free emulsion polymerization. (author)
Authors:
Chen, Q.; Shi, J.; Zhao, R.; Shen, X., E-mail: qdchen@pku.edu.cn [1] 
  1. Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, No. 5, Yiheyuan Load, Haidian District Beijing 100871 (China)
Publication Date:
Jul 01, 2010
Product Type:
Conference
Report Number:
IAEA-RC-1124.2
Resource Relation:
Conference: 2. research coordination meeting on nanoscale radiation engineering of advanced materials for potential biomedical applications, Paris (France), 15-19 Nov 2010; Other Information: 43 refs., 5 figs., 1 tab.; Related Information: In: Report of the 2nd RCM on nanoscale radiation engineering of advanced materials for potential biomedical applications| 236 p.
Subject:
38 RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; 60 APPLIED LIFE SCIENCES; ABSORPTION; CARBON NITRIDES; CONCENTRATION RATIO; EMULSIONS; FERROCYANIDES; HYBRIDIZATION; INORGANIC POLYMERS; IRRADIATION; METHACRYLATES; METHACRYLIC ACID ESTERS; NANOPARTICLES; NANOSTRUCTURES; PATIENTS; POLYMERIZATION; POTASSIUM COMPOUNDS; PVP; RADIOLYSIS; SPHERICAL CONFIGURATION; SULFIDES; SURFACTANTS; SYNTHESIS; TEMPERATURE RANGE 0273-0400 K; THIOUREA
OSTI ID:
22309179
Research Organizations:
International Atomic Energy Agency, Division of Physical and Chemical Sciences, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
TRN: XA14M3042015352
Availability:
Available from INIS in electronic form. Also available on-line: http://www-naweb.iaea.org/napc/iachem/working_materials/RC-1124-2_report_complete.pdf
Submitting Site:
INIS
Size:
page(s) 58-69
Announcement Date:
Feb 28, 2015

Citation Formats

Chen, Q., Shi, J., Zhao, R., and Shen, X., E-mail: qdchen@pku.edu.cn. Radiolytic Syntheses of Nanoparticles and Inorganic-Polymer Hybrid Microgels. IAEA: N. p., 2010. Web.
Chen, Q., Shi, J., Zhao, R., & Shen, X., E-mail: qdchen@pku.edu.cn. Radiolytic Syntheses of Nanoparticles and Inorganic-Polymer Hybrid Microgels. IAEA.
Chen, Q., Shi, J., Zhao, R., and Shen, X., E-mail: qdchen@pku.edu.cn. 2010. "Radiolytic Syntheses of Nanoparticles and Inorganic-Polymer Hybrid Microgels." IAEA.
@misc{etde_22309179,
title = {Radiolytic Syntheses of Nanoparticles and Inorganic-Polymer Hybrid Microgels}
author = {Chen, Q., Shi, J., Zhao, R., and Shen, X., E-mail: qdchen@pku.edu.cn}
abstractNote = {In the second year of the project, we have gotten progress mainly in two directions. Firstly, for the first time, Prussian blue (PB) nanoparticles (NPs) were successfully synthesized by the partly radiolytic reduction of Fe3+ and Fe(CN)63 in the presence of poly(N-vinyl pyrrolidine) (PVP) under N2 atmospheres at room temperature. With the increase of the concentration of PVP, the size and the size distribution of the synthesized quasi-spherical PB NPs decreased obviously, leading to a hypsochromic shift on their peak position of the characteristic absorption. In the experiment, we further found that the smaller ones have a larger capacity to Cs+, suggesting that the application of PB NPs in curing thallotoxicosis may decrease the usage of PB for the patient to great extent. Secondly, through a series of preliminary experiments, we got a clear picture about the one-step radiolytic preparation of inorganic-poly(methacrylic acid-co-methyl methacrylate) hybrid microgels by surfactant-free emulsion polymerization. Besides, unpurified N-carbamothioylmethacrylamide was synthesized via the methacrylation of thiourea. These created favorable conditions for the one-step synthesis of metal sulfide-poly(methacrylic acid-co-methyl methacrylate) hybrid microgels by -irradiation and surfactant-free emulsion polymerization. (author)}
place = {IAEA}
year = {2010}
month = {Jul}
}