Zero-charged catanionic lamellar liquid crystals doped with fullerene C60 for potential applications in tribology | |
Department | 清洁能源化学与材料实验室 |
Chen, Mengjun1,2; Liu BY(刘宝勇)2; Wang, Xiaolin1; Fu, Yanxu1; Hao JC(郝京诚)1; Li HG(李洪光)2; Hao JC(郝京诚); Li HG(李洪光) | |
2017 | |
Source Publication | Soft Matter |
ISSN | 1744-683X |
Volume | 13Issue:36Pages:6250-6258 |
Abstract | The formation of lamellar liquid crystals (LLCs) has been demonstrated in a few salt-free catanionic surfactant systems and their properties have been well documented. However, examples of their combination with other materials are relatively rare. Herein, a salt-free zero-charged catanionic surfactant with low chain melting temperature was prepared by mixing equimolar tetradecyltrimethylammonium oxide (TTAOH) and oleic acid (OA) in water, and its concentration-dependent aggregate transition was investigated. In the dilute region (cTTAO ≤ 5 wt%), fluorescence microscopy observations revealed the formation of vesicles (the Lαv phase). Further increasing cTTAO induced a transition from the Lαv phase to LLCs via a region where vesicles and lamellae coexist. With ordered hydrophobic domains, the LLCs can be used as hosts for the doping of fullerene C60 (refers to C60 hereafter) with the highest C60/TTAO weight ratio of 0.04. The doping of C60 effectively improves the viscoelasticity of the LLCs confirmed by rheological characterization while only slight modifications on their matrixes have been detected using small angle X-ray scattering measurements. The LLC/C60 hybrids with cTTAO = 80 wt% were then subjected to tribological measurements, and an obvious reduction in their friction coefficients and wear volumes was observed. The C60/TTAO weight ratio at which the best tribological performance appears was determined to be 0.01. Our results indicate that the combination of C60 and catanionic LLCs could lead to the appearance of a new generation of environmentally-benign lubricants. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c7sm00800g |
Funding Organization | the National Natural Science Foundation of China (No. 61474124;21402215;21420102006) ;the Hundred Talents Program of the Chinese Academy of Sciences (Y20245YBR1) |
Indexed By | SCI |
If | 3.889 |
Language | 英语 |
Funding Project | 柔性有机太阳能电池研究组 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/22513 |
Collection | 清洁能源化学与材料实验室 |
Corresponding Author | Hao JC(郝京诚); Li HG(李洪光) |
Affiliation | 1.Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Shandong University, Ministry of education, Jinan, China 2.Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China |
Recommended Citation GB/T 7714 | Chen, Mengjun,Liu BY,Wang, Xiaolin,et al. Zero-charged catanionic lamellar liquid crystals doped with fullerene C60 for potential applications in tribology[J]. Soft Matter,2017,13(36):6250-6258. |
APA | Chen, Mengjun.,Liu BY.,Wang, Xiaolin.,Fu, Yanxu.,Hao JC.,...&李洪光.(2017).Zero-charged catanionic lamellar liquid crystals doped with fullerene C60 for potential applications in tribology.Soft Matter,13(36),6250-6258. |
MLA | Chen, Mengjun,et al."Zero-charged catanionic lamellar liquid crystals doped with fullerene C60 for potential applications in tribology".Soft Matter 13.36(2017):6250-6258. |
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