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Preparation of a polymer-intercalated layered manganese oxide nanocomposite through a delamination/reassembling process

Published online by Cambridge University Press:  01 July 2006

Zong-Huai Liu*
Affiliation:
Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Normal University,Xian 710062, People's Republic of China
Liping Kang
Affiliation:
Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Normal University,Xian 710062, People's Republic of China
Zupei Yang
Affiliation:
Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Normal University,Xian 710062, People's Republic of China
Zenglin Wang
Affiliation:
Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Normal University,Xian 710062, People's Republic of China
Kenta Ooi
Affiliation:
National Institute of Advanced Industrial Science and Technology, Takamatsu, Kagawa 761-0395, Japan
*
a) Address all correspondence to this author. e-mail: zhliu@snnu.edu.cn
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Abstract

Layered manganese oxide nanocomposite (PQN2MO) with Polyquaternium-2 (PQN2) incorporated between manganese oxide sheets was synthesized through a delamination/reassembling process. The synthesized material was characterized by powder x-ray diffraction (XRD), elemental analysis, thermal analysis, Fourier transform infrared spectroscopy, and scanning electron microscopy observation. XRD analysis showed that the expansion of the interlayer depended on the amount of PQN2 intercalated; the largest expansion was 0.94 nm, corresponding to a layer of PQN2 chains existing in the interlayer at an angle of about 30°. Chemical analysis results indicated that the tetramethylammonium (TMA+) ions in the interlayer were partly replaced by PQN2 polycations by an ion exchange mechanism, resulting in a nanocomposite in which TMA+ ions and PQN2 polycations simultaneously existed in the interlayer. The intercalated PQN2 polycations were selectively extracted, and TMA+ ions were stable enough to remain in the interlayer against the acid treatment. PQN2MO nanocomposite was composed of platelike nanocomposite particles.

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Articles
Copyright
Copyright © Materials Research Society 2006

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