National Research Center, P.O. 12622, Cairo, Egypt.
J Colloid Interface Sci. 2013 Mar 1;393:130-7. doi: 10.1016/j.jcis.2012.11.008. Epub 2012 Nov 29.
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.
纤维素织物通过在水介质中的一锅光聚合方法被涂覆了聚吡咯-银（PPy/Ag）纳米复合材料薄膜。该过程针对不同浓度的吡咯/织物重量比进行了优化，其中[吡咯]/[AgNO3]的固定摩尔比为 2.5。通过织物的简单重量测量表明，与初始吡咯/织物重量比和光聚合时间相比，PPy/Ag 的涂层逐渐增加。X 射线衍射（XRD）数据证实了 Ag 纳米晶体的纳米尺寸（10-30nm）和金属状态。银颗粒的金属状态也通过 X 射线光电子能谱（XPS）得到了证实。我们证明了在 AgNO3 的存在下，与没有紫外光的化学氧化聚合相比，吡咯的紫外诱导聚合既简单又快速。更重要的是，它允许在室温下通过在环境友好的水溶液中的一锅法涂覆纤维素织物的聚吡咯/Ag 纳米复合材料薄膜。
