Solvent-free atom transfer radical polymerization in the synthesis of Fe2O3@polystyrene core-shell nanoparticles

Yong Wang; Xiaowei Teng; Jin Shan Wang; Hong Yang

doi:10.1021/nl034211o

Solvent-free atom transfer radical polymerization in the synthesis of Fe₂O₃@polystyrene core-shell nanoparticles

Yong Wang, Xiaowei Teng, Jin Shan Wang, Hong Yang

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

Abstract

This paper describes the use of solvent-free atom transfer radical polymerization (ATRP) in the synthesis of Fe₂O ₃@polystyrene (PS) core-shell nanoparticles. In this approach, oleic acid stabilized Fe₂O₃ nanoparticles were ligand exchanged with 2-bromo-2-methylpropionic acid (Br-MPA), the initiator for ATRP. These Fe₂O₃ nanoparticles become soluble in styrene and can be used as macroinitiators for solvent-free ATRP. The synthesized core-shell nanoparticles were characterized by transmission electron microscopy (TEM), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), ultraviolet-visible (UV-vis) spectroscopy, and Fourier transform-infrared (FT-IR) spectroscopy. Well-defined Fe₂O₃@PS core-shell nanoparticles were obtained. The glassy transition temperature of PS was studied using DSC, and the molecular weight of PS was characterized by GPC. The unique aspects of this solvent-free ATRP in the synthesis of well-defined polymercoated nanoparticles will be discussed.

Original language	English (US)
Pages (from-to)	789-793
Number of pages	5
Journal	Nano letters
Volume	3
Issue number	6
DOIs	https://doi.org/10.1021/nl034211o
State	Published - Jun 1 2003
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl034211o

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Cite this

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title = "Solvent-free atom transfer radical polymerization in the synthesis of Fe2O3@polystyrene core-shell nanoparticles",

abstract = "This paper describes the use of solvent-free atom transfer radical polymerization (ATRP) in the synthesis of Fe2O 3@polystyrene (PS) core-shell nanoparticles. In this approach, oleic acid stabilized Fe2O3 nanoparticles were ligand exchanged with 2-bromo-2-methylpropionic acid (Br-MPA), the initiator for ATRP. These Fe2O3 nanoparticles become soluble in styrene and can be used as macroinitiators for solvent-free ATRP. The synthesized core-shell nanoparticles were characterized by transmission electron microscopy (TEM), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), ultraviolet-visible (UV-vis) spectroscopy, and Fourier transform-infrared (FT-IR) spectroscopy. Well-defined Fe2O3@PS core-shell nanoparticles were obtained. The glassy transition temperature of PS was studied using DSC, and the molecular weight of PS was characterized by GPC. The unique aspects of this solvent-free ATRP in the synthesis of well-defined polymercoated nanoparticles will be discussed.",

author = "Yong Wang and Xiaowei Teng and Wang, {Jin Shan} and Hong Yang",

year = "2003",

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T1 - Solvent-free atom transfer radical polymerization in the synthesis of Fe2O3@polystyrene core-shell nanoparticles

AU - Wang, Yong

AU - Teng, Xiaowei

AU - Wang, Jin Shan

AU - Yang, Hong

PY - 2003/6/1

Y1 - 2003/6/1

N2 - This paper describes the use of solvent-free atom transfer radical polymerization (ATRP) in the synthesis of Fe2O 3@polystyrene (PS) core-shell nanoparticles. In this approach, oleic acid stabilized Fe2O3 nanoparticles were ligand exchanged with 2-bromo-2-methylpropionic acid (Br-MPA), the initiator for ATRP. These Fe2O3 nanoparticles become soluble in styrene and can be used as macroinitiators for solvent-free ATRP. The synthesized core-shell nanoparticles were characterized by transmission electron microscopy (TEM), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), ultraviolet-visible (UV-vis) spectroscopy, and Fourier transform-infrared (FT-IR) spectroscopy. Well-defined Fe2O3@PS core-shell nanoparticles were obtained. The glassy transition temperature of PS was studied using DSC, and the molecular weight of PS was characterized by GPC. The unique aspects of this solvent-free ATRP in the synthesis of well-defined polymercoated nanoparticles will be discussed.

AB - This paper describes the use of solvent-free atom transfer radical polymerization (ATRP) in the synthesis of Fe2O 3@polystyrene (PS) core-shell nanoparticles. In this approach, oleic acid stabilized Fe2O3 nanoparticles were ligand exchanged with 2-bromo-2-methylpropionic acid (Br-MPA), the initiator for ATRP. These Fe2O3 nanoparticles become soluble in styrene and can be used as macroinitiators for solvent-free ATRP. The synthesized core-shell nanoparticles were characterized by transmission electron microscopy (TEM), gel permeation chromatography (GPC), differential scanning calorimetry (DSC), ultraviolet-visible (UV-vis) spectroscopy, and Fourier transform-infrared (FT-IR) spectroscopy. Well-defined Fe2O3@PS core-shell nanoparticles were obtained. The glassy transition temperature of PS was studied using DSC, and the molecular weight of PS was characterized by GPC. The unique aspects of this solvent-free ATRP in the synthesis of well-defined polymercoated nanoparticles will be discussed.

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