The distribution of hydrophobized inorganic nanoparticles in thermoresponsive polymer nanocomposite films investigated by Scanning Probe and Electron Microscopy

被引：9

作者：

Bunk, J. K. G. ^{[1
,2
]}

Drechsler, A. ^{[1
]}

Rauch, S. ^{[1
,2
]}

Uhlmann, P. ^{[1
]}

Stamm, M. ^{[1
,2
]}

Rennekamp, R. ^{[3
]}

机构：

[1] Leibniz Inst Polymerforsch Dresden eV, D-01069 Dresden, Germany

[2] Tech Univ Dresden, D-01062 Dresden, Germany

[3] Hsch Tech & Wirtschaft Dresden, D-01069 Dresden, Germany

来源：

EUROPEAN POLYMER JOURNAL | 2013年 / 49卷 / 08期

关键词：

Nanocomposite; Magnetite; Nanoparticles; Poly(N-isopropyl acrylamide); Scanning Probe Microscopy; Electron Microscopy; BRUSHES; DISPERSION; SURFACE;

D O I：

10.1016/j.eurpolymj.2013.03.011

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Thin nanocomposite films have been created by spin-coating a poly(N-isopropyl acrylamide) solution containing different amounts of CoFe2O4 and Fe3O4 nanoparticles onto a substrate. These samples were investigated by Scanning Probe Microscopy and Electron Microscopy after drying at room temperature and after an additional annealing and extraction procedure to graft the polymer chemically to the substrate. It was found that during the spin-coating the particles enriched at the interface between polymer and substrate and at the polymer surface. With a sufficiently high particle concentration, a nearly closed particle layer could be obtained. Grafting and extraction of the polymers lead to a significant reduction of the polymer mass yielding a rough composite layer with a high content of embedded nanoparticles. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1994 / 2004

页数：11

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