کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
612629 | 880702 | 2006 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Interactions between gemini surfactant alkanediyl-α,ωα,ω-bis(dodecyldimethylammonium bromide) and polyelectrolyte NaPAA Interactions between gemini surfactant alkanediyl-α,ωα,ω-bis(dodecyldimethylammonium bromide) and polyelectrolyte NaPAA](/preview/png/612629.png)
Interactions between cationic gemini surfactant alkanediyl-α,ωα,ω-bis(dodecyldimethylammonium bromide) (12-n -12, n=3,4,6n=3,4,6) and oppositely charged polyelectrolyte sodium polyacrylate (NaPAA) in aqueous solution have been investigated by measuring fluorescence, conductivity, UV–vis transmittance, dynamic lighting scattering, and transmission electron microscopy. Micelle-like structure and 12-n-12/NaPAA complex are observed to form due to the electrostatic and hydrophobic interactions, and the effective diameter of the complex reduces with increasing 12-n-12 concentration. The microstructures of 12-n-12/NaPAA solution determined from fluorescence and electron microscopy measurements are in good agreement. The spacer length is found to play an important role in the interactions of 12-n-12 with NaPAA.
Figure optionsDownload as PowerPoint slide
Journal: Journal of Colloid and Interface Science - Volume 301, Issue 2, 15 September 2006, Pages 631–636