Synthesis and characterization of nanosized metals embedded in polystyrene matrix

Devinder Mahajan; Amruta Desai; Miriam Rafailovich; Min Hui Cui; Nan Loh Yang

doi:10.1016/j.compositesb.2004.12.005

Synthesis and characterization of nanosized metals embedded in polystyrene matrix

Devinder Mahajan, Amruta Desai, Miriam Rafailovich, Min Hui Cui, Nan Loh Yang

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Thermal treatment of a solution containing iron pentacarbonyl and styrene monomer in hexadecane resulted in a high yield (>90%) of nanoparticles of iron encapsulated in a polystyrene matrix (Fe-PST). The freshly prepared off-colored Fe in polystyrene (Fe-PST) material consisted of black particles that were attributed to zero-valent iron. On exposure to air, the black Fe particles slowly turned dark brown due to conversion into iron oxide. The observed oxidation phenomenon was confirmed by electron paramagnetic resonance (EPR) spectroscopy: the freshly prepared Fe-PST was EPR silent but after exposure to air, a strong signature EPR signal for iron oxide was recorded. The infrared data confirmed changes in intensity of characteristic bands of PST in Fe-PST. The TEM image of the oxidized Fe-PST material consisted of discrete Fe particles that were distributed throughout the polymer matrix. The differential scanning calorimetric data of Fe-PST showed an enhanced glass transition temperature to 120 °C owing to the presence of Fe nanoparticles.

Original language	English (US)
Pages (from-to)	74-80
Number of pages	7
Journal	Composites Part B: Engineering
Volume	37
Issue number	1
DOIs	https://doi.org/10.1016/j.compositesb.2004.12.005
State	Published - Jan 2006
Externally published	Yes

Keywords

Nano metal particles

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.compositesb.2004.12.005

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title = "Synthesis and characterization of nanosized metals embedded in polystyrene matrix",

abstract = "Thermal treatment of a solution containing iron pentacarbonyl and styrene monomer in hexadecane resulted in a high yield (>90%) of nanoparticles of iron encapsulated in a polystyrene matrix (Fe-PST). The freshly prepared off-colored Fe in polystyrene (Fe-PST) material consisted of black particles that were attributed to zero-valent iron. On exposure to air, the black Fe particles slowly turned dark brown due to conversion into iron oxide. The observed oxidation phenomenon was confirmed by electron paramagnetic resonance (EPR) spectroscopy: the freshly prepared Fe-PST was EPR silent but after exposure to air, a strong signature EPR signal for iron oxide was recorded. The infrared data confirmed changes in intensity of characteristic bands of PST in Fe-PST. The TEM image of the oxidized Fe-PST material consisted of discrete Fe particles that were distributed throughout the polymer matrix. The differential scanning calorimetric data of Fe-PST showed an enhanced glass transition temperature to 120 °C owing to the presence of Fe nanoparticles.",

keywords = "Nano metal particles",

author = "Devinder Mahajan and Amruta Desai and Miriam Rafailovich and Cui, {Min Hui} and Yang, {Nan Loh}",

note = "Funding Information: This work was supported by the U.S. Department of Energy under contract No. DE-AC02-98CH10886 at Brookhaven National Laboratory. Supports of this work by the NSF-MRSEC (DMR 9632525) at both SUNY at Stony Brook and CUNY at Staten Island are gratefully acknowledged. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2006",

month = jan,

doi = "10.1016/j.compositesb.2004.12.005",

language = "English (US)",

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pages = "74--80",

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AU - Mahajan, Devinder

AU - Desai, Amruta

AU - Rafailovich, Miriam

AU - Cui, Min Hui

AU - Yang, Nan Loh

N1 - Funding Information: This work was supported by the U.S. Department of Energy under contract No. DE-AC02-98CH10886 at Brookhaven National Laboratory. Supports of this work by the NSF-MRSEC (DMR 9632525) at both SUNY at Stony Brook and CUNY at Staten Island are gratefully acknowledged. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2006/1

Y1 - 2006/1

N2 - Thermal treatment of a solution containing iron pentacarbonyl and styrene monomer in hexadecane resulted in a high yield (>90%) of nanoparticles of iron encapsulated in a polystyrene matrix (Fe-PST). The freshly prepared off-colored Fe in polystyrene (Fe-PST) material consisted of black particles that were attributed to zero-valent iron. On exposure to air, the black Fe particles slowly turned dark brown due to conversion into iron oxide. The observed oxidation phenomenon was confirmed by electron paramagnetic resonance (EPR) spectroscopy: the freshly prepared Fe-PST was EPR silent but after exposure to air, a strong signature EPR signal for iron oxide was recorded. The infrared data confirmed changes in intensity of characteristic bands of PST in Fe-PST. The TEM image of the oxidized Fe-PST material consisted of discrete Fe particles that were distributed throughout the polymer matrix. The differential scanning calorimetric data of Fe-PST showed an enhanced glass transition temperature to 120 °C owing to the presence of Fe nanoparticles.

AB - Thermal treatment of a solution containing iron pentacarbonyl and styrene monomer in hexadecane resulted in a high yield (>90%) of nanoparticles of iron encapsulated in a polystyrene matrix (Fe-PST). The freshly prepared off-colored Fe in polystyrene (Fe-PST) material consisted of black particles that were attributed to zero-valent iron. On exposure to air, the black Fe particles slowly turned dark brown due to conversion into iron oxide. The observed oxidation phenomenon was confirmed by electron paramagnetic resonance (EPR) spectroscopy: the freshly prepared Fe-PST was EPR silent but after exposure to air, a strong signature EPR signal for iron oxide was recorded. The infrared data confirmed changes in intensity of characteristic bands of PST in Fe-PST. The TEM image of the oxidized Fe-PST material consisted of discrete Fe particles that were distributed throughout the polymer matrix. The differential scanning calorimetric data of Fe-PST showed an enhanced glass transition temperature to 120 °C owing to the presence of Fe nanoparticles.

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Synthesis and characterization of nanosized metals embedded in polystyrene matrix

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