Anhydride modified silica nanoparticles: Preparation and characterization

被引：38

作者：

Barabanova, A. I. ^{[1
]}

Pryakhina, T. A. ^{[1
]}

Afanas'ev, E. S. ^{[1
]}

Zavin, B. G. ^{[1
]}

Vygodskii, Ya. S. ^{[1
]}

Askadskii, A. A. ^{[1
]}

Philippova, O. E. ^{[2
]}

Khokhlov, A. R. ^{[1
,2
]}

机构：

[1] Inst Organoelement Cpds, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia

来源：

APPLIED SURFACE SCIENCE | 2012年 / 258卷 / 07期

关键词：

Silica nanoparticles; Surface modification; Epoxy nanocomposite; SURFACE MODIFICATION; EPOXY; NANOCOMPOSITES;

D O I：

10.1016/j.apsusc.2011.11.057

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The paper describes modification of colloid silica nanoparticles, using 3-(triethoxysilyl)propylsuccinic anhydride (TESPSA) as a reagent. Anhydride groups were grafted to the silica surface by an interaction of the surface silanol Si-OH groups with reactive ethoxy groups of TESPSA. Elemental analysis, FTIR and H-1 NMR spectroscopy were employed to characterize silica nanoparticles before and after surface modification. It was demonstrated that only fifty percent of silica surface silanol groups are involved in the reaction with TESPSA. Size distribution of nanoparticles determined by atomic force microscopy (AFM) technique shows that nanoparticles preserve their size upon modification. TESPSA-modified silica nanoparticles can be used as polyfunctional curing agent for epoxy resin. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：3168 / 3172

页数：5

共 21 条

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