Formation of Cu-based nanoparticles during imidization of PAA into PI in the various environments
- Authors
- Choi, Jae-Youn; Dong, Wenguo; Kim, Young-Ho
- Issue Date
- Feb-2008
- Publisher
- ELSEVIER
- Keywords
- nanoparticles; Cu2O; polyimide; imidization; environment
- Citation
- COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, v.313, pp.335 - 338
- Indexed
- SCIE
SCOPUS
- Journal Title
- COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
- Volume
- 313
- Start Page
- 335
- End Page
- 338
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/172144
- DOI
- 10.1016/j.colsurfa.2007.04.149
- ISSN
- 0927-7757
- Abstract
- 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.
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