 | |||
 |
 |
 |
 |
 | |||
Please use this identifier to cite or link to this item:
http://hdl.handle.net/10203/22741
|
| Hit : 262 Download : 1,814 |
Title | Noncovalent functionalization of graphene with end-functional polymers |
Authors | Choi, EY[Choi, Eun-Young]; Han, TH[Han, Tae Hee]; Hong, JH[Hong, Jihyun]; Kim, JE[Kim, Ji Eun]; Lee, SH[Lee, Sun Hwa]; Kim, HW[Kim, Hyun Wook]; Kim, SO[Kim, Sang Ouk]  |
Issue Date | 2010 |
Publisher | ROYAL SOC CHEMISTRY |
Citation | JOURNAL OF MATERIALS CHEMISTRY, v.20, no.10, pp.1907 - 1912 |
Abstract | Stable dispersion of reduced graphene in various organic solvents was achieved via noncovalent functionalization with amine-terminated polymers. An aqueous dispersion of reduced graphene was prepared by chemical reduction of graphene oxide in aqueous media and was vacuum filtered to generate reduced graphene sheets. Good solvents and nonsolvents for the dried reduced graphene were evaluated using a solubility test. To achieve stable dispersion in the evaluated nonsolvents, amineterminated polystyrene was noncovalently functionalized to the graphene, while graphene sheets were phase transferred via sonication from aqueous phase to the organic nonsolvent phase, including the amine-terminated polymers. Thorough FTIR and Raman spectroscopy investigation verified that the protonated amine terminal group of polystyrene underwent noncovalent functionalization to the carboxylate groups at the graphene surface, providing the high dispersibility in various organic media. |
ISSN | 0959-9428 |
URI | http://hdl.handle.net/10203/22741 |
DOI | |
Link | |
Appears in Collections |
| Files in This Item: | Description | Size | Format | |
|---|---|---|---|---|
| 55.Noncovalent functional ization of graphene with end-functional polymers.pdf | 236Kb | Adobe PDF | View/Open | |
|
|
|
Items in KOASAS are protected by copyright, with all rights reserved, unless otherwise indicated.
| DSpace Software Copyright(c) 2008 MIT and Hewlett-Packard KOASAS TEL. 82-42-350-4494 E-mail. koasas@kaist.ac.kr |
