Polyferrocenylsilane and magnetic ceramic microspheres

被引：0
|
作者：
Kulbaba, K
Resendes, R
Cheng, A
Bartole, A
Safa-Sefat, A
Coombs, N
Stöver, HDH
Greedan, JE
Ozin, GA [1 ]
Manners, I
机构：
[1] Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada
[2] McMaster Univ, Dept Chem, Hamilton, ON L8S 4M1, Canada
来源：
ADVANCED MATERIALS | 2001年 / 13卷 / 10期
关键词：
D O I：
10.1002/1521-4095(200105)13:10<732::AID-ADMA732>3.0.CO;2-2
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Microspheres comprised of polyferrocenylsilane with metal ions in the backbone of the polymer were synthesized. Upon oxidation, these polyferrocenylsilane microspheres (PFSMS) underwent electrostatic self-assembly with silica spheres to form composite core-shell particles. Thermal treatment of PFSMS transformed them, with shape retention, into ceramic microspheres containing α-Fe nanoclusters embedded within a silicon carbide-carbon matrix. Variation of the pyrolysis conditions led to ceramics with tunable magnetic properties from the superparamagnetic to the ferromagnetic states.
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收藏
页码：732 / 736
页数：5
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