| Literature DB >> 23273672 |
Mohamed F Attia1, Tahar Azib, Zakaria Salmi, Ajay Singh, Philippe Decorse, Nicolas Battaglini, Hélène Lecoq, Mária Omastová, Asha A Higazy, Amira M Elshafei, Mohamed M Hashem, Mohamed M Chehimi.
Abstract
Cellulose fabrics were coated with polypyrrole-silver (PPy/Ag) nanocomposite films via one pot photopolymerization in aqueous media. This process was optimized for various concentrations of pyrrole/textile weight ratios with fixed molar ratio of [pyrrole]/[AgNO(3)] as 2.5. Simple weight measurements of the fabrics indicated progressive coating of PPy/Ag versus initial pyrrole/fabric weight ratio and photopolymerization time. X-ray diffraction (XRD) data confirm the nano-size (10-30 nm) and metallic state of Ag crystallites. The metallic state of silver particles was also confirmed by X-ray photoelectron spectroscopy (XPS). We demonstrate that UV-induced polymerization of pyrrole in the presence of AgNO(3) is simple and fast compared to chemical oxidative polymerization in the absence of UV light. More importantly, it permits to coat cellulose fabrics in one pot by polypyrrole/Ag nanocomposites films in environmentally friendly aqueous solutions at room temperature.Entities:
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Year: 2012 PMID： 23273672 DOI： 10.1016/j.jcis.2012.11.008
Source DB: PubMed Journal: J Colloid Interface Sci ISSN： 0021-9797 Impact factor: 8.128