caa a22 4500 463223748 CHVBK 20180405153220.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10853-007-1756-x doi (NATIONALLICENCE)springer-10.1007/s10853-007-1756-x Surface activity of perfluoropolyalkylether N,N -diphenylamide (PFPEA) [Elektronische Daten] [Guotuan Gu, Minghua Yu, Weidong Meng, Feng-Ling Qing] A functional derivative of perfluoropolyalkylether, perfluoropolyalkylether N,N-diphenylamide (PFPEA) was synthesized and characterized by FT-IR, 1H and 19F NMR, and the thermo stability was determined by TG analysis. The surface activity of PFPEA was characterized by the determination of surface tension of organic solvents and the adsorption behavior on the surfaces of solids such as Fe, Al, Cu plates. PFPEA reduced the surface tension of organic solvents greatly such as benzene, toluene, hexane, and cyclohexane. PFPEA was adsorbed on surfaces of solids to form molecular thin films through the end groups. Surface properties of thin films of PFPEA formed by adsorption in organic solutions were characterized using contact angle measurements and X-ray Photoelectron Spectrum (XPS) analysis. The anti-wear performances of adsorbed thin films of PFPEA were determined on a four-ball tribo-tester under the lubrication of liquid lubricants. Films preadsorbed on the substrate surfaces could improve the anti-wear properties of liquid lubricants. Springer Science+Business Media, LLC, 2007 Gu Guotuan College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, 201620, Shanghai, China aut Yu Minghua College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, 201620, Shanghai, China aut Meng Weidong College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, 201620, Shanghai, China aut Qing Feng-Ling College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, 201620, Shanghai, China aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/20(2007-10-01), 8537-8543 0022-2461 42:20<8537 2007 42 10853 https://doi.org/10.1007/s10853-007-1756-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1756-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gu Guotuan College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, 201620, Shanghai, China aut NATIONALLICENCE 700 1- Yu Minghua College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, 201620, Shanghai, China aut NATIONALLICENCE 700 1- Meng Weidong College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, 201620, Shanghai, China aut NATIONALLICENCE 700 1- Qing Feng-Ling College of Chemistry and Chemical Engineering, Donghua University, 2999 North Renmin Road, 201620, Shanghai, China aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/20(2007-10-01), 8537-8543 0022-2461 42:20<8537 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer