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	Polyelectrolyte-grafted carbon nanotubes: synthesis, reversible phase-transition behavior, and tribological properties as lubricant additives
	Pei, Xiaowei1,2; Xia, Yanqiu1; Liu, Weimin1; Yu, Bo1; Hao, Jingcheng1,3
刊名	Journal of polymer science part a-polymer chemistry
	2008-11-01
卷号	46期号:21页码:7225-7237
关键词	Atom transfer radical polymerization (atrp) Carbon nanotube Ionic liquids Lubricant additives Phase-transition Tribological
ISSN号	0887-624X
DOI	10.1002/pola.23029
通讯作者	Hao, jingcheng(jhao@sdu.edu.cn)
英文摘要	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. (c) 2008 wiley periodicals, inc. j polym sci part a: polym chem 46: 7225-7237, 2008
WOS关键词	TRANSFER RADICAL POLYMERIZATION ; TEMPERATURE IONIC LIQUIDS ; RAFT POLYMERIZATION ; MULTILAYER FILMS ; FUNCTIONALIZATION ; SURFACE ; NANOCOMPOSITES ; POLYSTYRENE ; COMPOSITE ; POLYMERS
WOS研究方向	Polymer Science
WOS类目	Polymer Science
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000260587100032
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2388000
专题	中国科学院大学
通讯作者	Hao, Jingcheng
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Shandong Univ, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China
推荐引用方式 GB/T 7714	Pei, Xiaowei,Xia, Yanqiu,Liu, Weimin,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(21):7225-7237.
APA	Pei, Xiaowei,Xia, Yanqiu,Liu, Weimin,Yu, Bo,&Hao, Jingcheng.(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(21),7225-7237.
MLA	Pei, Xiaowei,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 46.21(2008):7225-7237.

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