| Polyelectrolyte-grafted carbon nanotubes: synthesis,reversible phase-transition behavior, and tribological properties as lubricant additives | |
| Department | 固体润滑国家重点实验室 |
Pei XW(裴小维) ; Xia YQ(夏延秋); Liu WM(刘维民); 于波(男); Hao JC(郝京诚)
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| 2008 | |
| Source Publication | Journal of Polymer Science: Part A:Polymer Chemistry
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| ISSN | 0887-624X |
| Volume | 46Pages:7225-7237 |
| Abstract | A novel polyelectrolyte-grafted multiwalled carbon nanotubes (MWCNTs-g-PILs) which possesses a hard backbone of MWCNTs and a soft shell of brush-like poly (ionic liquids) (PILs) has been synthesized via the surface atom transfer radical polymerization (ATRP). Chemical structure and the grafted PILs quantities of MWCNTs-g-PILs were determined by FTIR, TGA, and XPS. TEM and FE-SEM observations indicate that the nanotubes were coated with a PILs layer, exhibiting core-shell nanostructures with the PILs chains as the brush-like or hairy shell and the MWCNTs as the hard backbone. Furthermore, the effect of counter-anions on the solubility of MWCNTs-g-PILs was investigated. The results indicate that relative solubility of MWCNTs-g-PILs in various solvents could be switched by anion exchange. This tunable solubility results in the formation of the cycle of reversible phase-transition. Tribological property of MWCNTs-g-PILs as additives in base lubricant 1-methyl-3-butylimidaaolium hexafluorophosphate (LP104) was evaluated using an Optimol SRV oscillating friction and wear tester, confirming that MWCNTs-g-PILs are the excellent antiwear and friction-reducing additives, which can amend the tribological properties of base lubricant significantly. This is attributed to the good dispersibility and core-shell structure of MWCNTs-g-PILs. These results reported in this work may open primarily toward constructing a bridge among carbon nanotues (CNTs), ILs, and lubricant additives and secondarily to prove that CNTs (modified CNTs) as lubricant additives are promising candidates. |
| Keyword | Atom Transfer Radical Polymerization (Atrp) Carbon Nanotube Ionic Liquids Lubricant Additives Phase-transition Tribological |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the NSFC (Grant Nos. 20625307;50721062) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 空间润滑材料组 |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/2991 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Hao JC(郝京诚) |
| Recommended Citation GB/T 7714 | Pei XW,Xia YQ,Liu WM,et al. Polyelectrolyte-grafted carbon nanotubes: synthesis,reversible phase-transition behavior, and tribological properties as lubricant additives[J]. Journal of Polymer Science: Part A:Polymer Chemistry,2008,46:7225-7237. |
| APA | 裴小维,夏延秋,刘维民,于波,&郝京诚.(2008).Polyelectrolyte-grafted carbon nanotubes: synthesis,reversible phase-transition behavior, and tribological properties as lubricant additives.Journal of Polymer Science: Part A:Polymer Chemistry,46,7225-7237. |
| MLA | 裴小维,et al."Polyelectrolyte-grafted carbon nanotubes: synthesis,reversible phase-transition behavior, and tribological properties as lubricant additives".Journal of Polymer Science: Part A:Polymer Chemistry 46(2008):7225-7237. |
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| 20087225-7237.pdf（663KB） | 开放获取 | License | View Application Full Text | |||
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