Nano- and Microscale Friction Behaviors of Functionalized Self-Assembled Monolayers

Sangkwon Park; Yong-Wook Kim; Jong-Choo Lim; Hyo-Seok Ahn; Sang-Joon Park

Journal of Industrial and Engineering Chemistry, Vol.9, No.1, 16-24, January, 2003

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Nano- and Microscale Friction Behaviors of Functionalized Self-Assembled Monolayers

Sangkwon Park^†, Yong-Wook Kim, Jong-Choo Lim , Hyo-Seok Ahn¹, and Sang-Joon Park²

Department of Chemical and Biochemical Engineering, Dongguk University, Seoul 100-715, Korea
¹Tribiology Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea
²Department of Chemical Engineering, Kyungwon University, Song-Nam City 461-701, Korea

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The nano- and microscale friction behaviors of self-assembled monolayers (SAMs) of ω-functional n-alkanethiol surfactants were investigated in order to provide fundamental information regarding the effect of molecular structure of boundary lubricant on its lubrication performance. The SAMs with different terminal group and hydrocarbon chain length were prepared on gold substrates and atomic force microscopy tips by chemical adsorption and characterized by contact angle and X-ray photoeletron spectroscopy (XPS) measurements. The nano- and microscale friction coefficients of the SAMs were measured by a lateral force microscopy (LFM) and an oscillating friction and wear tester, respectively. As results, it is found that both the nano- and microscale friction behaviors were significantly affected by the terminal functionality and the hydrocarbon chain length of the SAMs. In addition, the nano- and microscale friction behaviors showed similar trends of the molecular structure effects.

Keywords:self-assembled monolayers;friction;wear;nonascale;microscale

[References]

Briscoe BJ, Tabor D, Interfacial Phenomena in Apolar Media, Surfactant Science Series, Vol. 21, H.F. Eicke, and D. Parfitt Eds., p. 327, Marcel Dekker, New York (1987)
O'Conner JJ, Boyd J, Standard Handbook of Lubrication Engineering, Chap. 2, McGraw Hill, New York (1968)
Israelachvili JN, Fundamentals of Friction: Macroscopic and Microscopic Processes, I.L. Singer and H.M. Pollock Eds., p. 351, Kluwer Academic Publishers, Boston (1992)
Adamson AW, Gast AP, Physical Chemistry of Surfaces, 6th Edn., Chap. 12, John Wiley and Sons, New York (1997)
Hardy WB, Doubleday I, Proc. R. Soc. London A, 102, 550 (1922)
Bowden FP, Gregory JN, Tabor D, Nature, 156, 97 (1945)
Levine O, Zisman A, J. Phys. Chem., 61, 1068 (1957)
Levine O, Zisman A, J. Phys. Chem., 61, 1188 (1957)
Bowden FP, Tabor D, The Friction and Lubrication of Solids, Part II, Clarendon, Oxford (1964)
Briscoe BJ, Scruton B, Willis FR, Proc. R. Soc. London A, 333, 99 (1973)
Briscoe BJ, Evans DCB, Proc. R. Soc. London A, 380, 389 (1982)
Israelachvili JN, Intermolecular and Surfac Forces, Academic Press, New York (1992)
Meyer E, Overney RM, Dransfeld K, Gyalog T, Nanoscience-Friction and Rheology on the Nanometerscale, World Scientific, New Jersey (1998)
Tai YC, Muller RS, Sens. Actuators A-Phys., 21, 180 (1990)
Fujita H, Jpn. J. Tribol., 37, 1375 (1992)
Israelachvili JN, Adams GE, J. Chem. Soc.-Faraday Trans., 74, 975 (1978)
Parker JL, Christenson HK, Ninham BW, Sci. Instrum., 60, 3135 (1989)
Israelachvili JL, McGuiggan PM, J. Mater. Res., 5, 2223 (1990)
Noy A, Frisbie CD, Rozsnyai LF, Wrighton MS, Lieber CM, J. Am. Chem. Soc., 117(30), 7943 (1995)
Liu YH, Evans DF, Song Q, Grainger DW, Langmuir, 12(5), 1235 (1996)
Clear SC, Nealey PF, J. Colloid Interface Sci., 213(1), 238 (1999)
White ML, J. Phys. Chem., 68, 3083 (1964)
White ML, Drobek J, J. Phys. Chem., 70, 3432 (1966)
Bain CD, Troughton EB, Tao YT, Evall J, Whitesides GM, Nuzzo RG, J. Am. Chem. Soc., 111, 321 (1989)
Joanny JF, deGennes PG, J. Chem. Phys., 81, 552 (1984)
Sinniah SK, Steel AB, Miller CJ, Reuttrobey JE, J. Am. Chem. Soc., 118(37), 8925 (1996)
Vandervegte EW, Hadziioannou G, Langmuir, 13(16), 4357 (1997)

[Referenced By]

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[1] Briscoe BJ, Tabor D, Interfacial Phenomena in Apolar Media, Surfactant Science Series, Vol. 21, H.F. Eicke, and D. Parfitt Eds., p. 327, Marcel Dekker, New York (1987)

[2] O'Conner JJ, Boyd J, Standard Handbook of Lubrication Engineering, Chap. 2, McGraw Hill, New York (1968)

[3] Israelachvili JN, Fundamentals of Friction: Macroscopic and Microscopic Processes, I.L. Singer and H.M. Pollock Eds., p. 351, Kluwer Academic Publishers, Boston (1992)

[4] Adamson AW, Gast AP, Physical Chemistry of Surfaces, 6th Edn., Chap. 12, John Wiley and Sons, New York (1997)

[5] Hardy WB, Doubleday I, Proc. R. Soc. London A, 102, 550 (1922)

[6] Bowden FP, Gregory JN, Tabor D, Nature, 156, 97 (1945)

[7] Levine O, Zisman A, J. Phys. Chem., 61, 1068 (1957)

[8] Levine O, Zisman A, J. Phys. Chem., 61, 1188 (1957)

[9] Bowden FP, Tabor D, The Friction and Lubrication of Solids, Part II, Clarendon, Oxford (1964)

[10] Briscoe BJ, Scruton B, Willis FR, Proc. R. Soc. London A, 333, 99 (1973)

[11] Briscoe BJ, Evans DCB, Proc. R. Soc. London A, 380, 389 (1982)

[12] Israelachvili JN, Intermolecular and Surfac Forces, Academic Press, New York (1992)

[13] Meyer E, Overney RM, Dransfeld K, Gyalog T, Nanoscience-Friction and Rheology on the Nanometerscale, World Scientific, New Jersey (1998)

[14] Tai YC, Muller RS, Sens. Actuators A-Phys., 21, 180 (1990)

[15] Fujita H, Jpn. J. Tribol., 37, 1375 (1992)

[16] Israelachvili JN, Adams GE, J. Chem. Soc.-Faraday Trans., 74, 975 (1978)

[17] Parker JL, Christenson HK, Ninham BW, Sci. Instrum., 60, 3135 (1989)

[18] Israelachvili JL, McGuiggan PM, J. Mater. Res., 5, 2223 (1990)

[19] Noy A, Frisbie CD, Rozsnyai LF, Wrighton MS, Lieber CM, J. Am. Chem. Soc., 117(30), 7943 (1995)

[20] Liu YH, Evans DF, Song Q, Grainger DW, Langmuir, 12(5), 1235 (1996)

[21] Clear SC, Nealey PF, J. Colloid Interface Sci., 213(1), 238 (1999)

[22] White ML, J. Phys. Chem., 68, 3083 (1964)

[23] White ML, Drobek J, J. Phys. Chem., 70, 3432 (1966)

[24] Bain CD, Troughton EB, Tao YT, Evall J, Whitesides GM, Nuzzo RG, J. Am. Chem. Soc., 111, 321 (1989)

[25] Joanny JF, deGennes PG, J. Chem. Phys., 81, 552 (1984)

[26] Sinniah SK, Steel AB, Miller CJ, Reuttrobey JE, J. Am. Chem. Soc., 118(37), 8925 (1996)

[27] Vandervegte EW, Hadziioannou G, Langmuir, 13(16), 4357 (1997)