Abstract
Layer-by-layer (LBL) assembly, which uses electronic and ionic intermolecular bonding under nonvacuum conditions, is a promising technology for fabricating gas barrier films owing to its simple processing and easy formation of a multilayer structure. In this research, nanoclay-polymer multilayers of Na+-montmorillonite (Na-MMT) were fabricated. Particularly, the addition of AuCl3 on fabricated MMT layers caused a reaction with the surface silanol functional groups (Si-O-H) of the MMT platelets, resulting in the formation of Au2O3 on the MMT-polymer multilayers. The Au2O3 filled the vacancies between the MMT platelets and linked the MMT platelets together, thus forming a gas barrier film that reduced the water vapor transmission rate (WVTR) to 3.2 × 10-3 g m-2 day-1. AuCl3-treated MMT-polymer multilayers thus have the potential to be utilized for manufacturing gas barrier films for flexible electronics on a large scale.
Original language | English |
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Pages (from-to) | 4778-4783 |
Number of pages | 6 |
Journal | ACS Applied Materials and Interfaces |
Volume | 7 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2015 Mar 4 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2015 American Chemical Society.
Keywords
- 2D materials
- flexible gas barrier films
- gold complex
- nanoclay
- water vapor transmission rate
ASJC Scopus subject areas
- General Materials Science