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

被引:225
作者
Wang, Y
Teng, XW
Wang, JS
Yang, H [1 ]
机构
[1] Univ Rochester, Dept Chem Engn, Rochester, NY 14627 USA
[2] Univ Rochester, Laser Energet Lab, Rochester, NY 14627 USA
[3] Eastman Kodak Co, R&D, Rochester, NY 14650 USA
关键词
D O I
10.1021/nl034211o
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This paper describes the use of solvent-free atom transfer radical polymerization (ATRP) in the synthesis of Fe2O3@ 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 polymer-coated nanoparticles will be discussed.
引用
收藏
页码:789 / 793
页数:5
相关论文
共 43 条
[21]  
KREIBIG U, 2001, HDB SURFACES INTERFA, V3, P1, DOI DOI 10.1016/B978-012513910-6/50034-7
[22]   Preparation of polymer coated gold nanoparticles by surface-confined living radical polymerization at ambient temperature [J].
Mandal, TK ;
Fleming, MS ;
Walt, DR .
NANO LETTERS, 2002, 2 (01) :3-7
[23]   Atom transfer radical polymerization [J].
Matyjaszewski, K ;
Xia, JH .
CHEMICAL REVIEWS, 2001, 101 (09) :2921-2990
[24]   Magnetic recording: advancing into the future [J].
Moser, A ;
Takano, K ;
Margulies, DT ;
Albrecht, M ;
Sonobe, Y ;
Ikeda, Y ;
Sun, SH ;
Fullerton, EE .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2002, 35 (19) :R157-R167
[25]   Synthesis of gold nanoparticles coated with well-defined, high-density polymer brushes by surface-initiated living radical polymerization [J].
Ohno, K ;
Koh, K ;
Tsujii, Y ;
Fukuda, T .
MACROMOLECULES, 2002, 35 (24) :8989-8993
[26]   Nonpolymeric coatings of iron oxide colloids for biological use as magnetic resonance imaging contrast agents [J].
Portet, D ;
Denizot, B ;
Rump, E ;
Lejeune, JJ ;
Jallet, P .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2001, 238 (01) :37-42
[27]  
POUCHERT CJ, 2001, ALDRICH LIB FT IR SP
[28]  
POULIQUEN D, 1999, MICROSPHERES MICROCA, V2, P373
[29]   Synthesis of well-defined block copolymers tethered to polysilsesquioxane nanoparticles and their nanoscale morphology on surfaces [J].
Pyun, J ;
Matyjaszewski, K ;
Kowalewski, T ;
Savin, D ;
Patterson, G ;
Kickelbick, G ;
Huesing, N .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (38) :9445-9446
[30]   Synthesis of nanocomposite organic/inorganic hybrid materials using controlled/"living" radical polymerization [J].
Pyun, J ;
Matyjaszewski, K .
CHEMISTRY OF MATERIALS, 2001, 13 (10) :3436-3448