In situ chemical oxidative graft polymerization of aniline from silica nanoparticles

被引：79
|
作者：
Liu, P
Liu, WM
Xue, QJ
机构：
[1] Lanzhou Univ, Dept Chem, Lanzhou 730000, Peoples R China
[2] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2004年 / 87卷 / 01期
关键词：
polyaniline; silica nanoparticles; chemical oxidating; in situ graft polymerization; characterization;
D O I：
10.1016/j.matchemphys.2004.05.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Polyaniline (PANI) grafted silica nanoparticles (PANI-SNs) had been prepared firstly by the in situ chemical oxidating of aniline with ammonium peroxodisulfate (APS) from the surfaces of the aminopropyl silica nanoparticles (APSNs) successfully with a dispersion polymerization method. A percentage of grafting (PG) of 205.2% and a grafting efficiency (GE) of 37.7% were achieved, calculated from the results of elemental analysis (EA). The chemical grafting of PANI was confirmed using FTIR and UV/Vis. The morphology of the polyaniline/silica nanocomposites (PANI/SN) and polyaniline grafted silica nanoparticles (PANI-SNs) were examined by SEM and TEM. The surface composition was determined by XPS and TGA were used for the characterization of the thermal stability of the PANI-SNs. (C) 2004 Elsevier B.V. All rights reserved.
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页码：109 / 113
页数：5
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