Formation of Cu-based nanoparticles during imidization of PAA into PI in the various environments

被引：17

作者：

Choi, Jae-Youn ^{[1
]}

Dong, Wenguo ^{[1
]}

Kim, Young-Ho ^{[1
]}

机构：

[1] Hanyang Univ, Div Engn & Mat Sci, Coll Engn, Seoul 133791, South Korea

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2008年 / 313卷

关键词：

nanoparticles; Cu2O; polyimide; imidization; environment;

D O I：

10.1016/j.colsurfa.2007.04.149

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：

A new method has been recently developed to fabricate highly dense nano-sized Cu2O particles in a polyimide film. Cu2O nanoparticles formed from the reaction of polyamic acid with a metal thin film and subsequent curing. In this paper, we report that both Cu2O and metallic Cu nanoparticles can be formed depending on the curing environment. When the N-2 flow rate was very low during curing, Cu2O nanoparticles formed. Meanwhile, Cu nanocrystals were formed during curing in the N-2 atmosphere employing a high flow rate or in a vacuum. Optical absorption spectra showed the surface plasmon resonance peak from metallic Cu nanoparticles at around 580-600 nm. Our results showed that Cu nanoparticles as well as Cu oxide nanoparticles can be formed by controlling the curing environment. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：335 / 338

页数：4

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