کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1297081 | 1498393 | 2007 | 6 صفحه PDF | دانلود رایگان |
Intercalation compounds of polyethylene oxide, polyvinylpyrrolidone, methyl cellulose, poly[oxymethylene-(oxyethylene)] and poly[oligo(ethylene glycol oxalate)] into graphite oxide (GO) have been synthesized. The forces of attraction between the polymers and GO are primarily dipole–dipole and/or hydrogen bonding arising from the polar groups in the polymers and the functional groups (COC, COOH, COH and CO) in the GO. Addition of a small amount of dilute NaOH resulted in deprotonation of the acidic functionalities which caused exfoliation of the layered structure. Mixing with polymer solutions, followed by addition of a small amount of HCl induced flocculation of the graphite oxide with the polymers trapped in the gallery space. The resulting composites were characterized by powder X-ray diffraction and thermogravimetric analysis.
Journal: Solid State Ionics - Volume 178, Issues 11–12, 15 May 2007, Pages 877–882