@article {1311323,
	title = {Acid-Based Behavior of Carboxylic Acid Groups Covalently Attached at the Surface of Polyethylene: The Usefulness of Contact Angle in Following the Ionization of Surface Functionality},
	journal = {Langmuir},
	volume = {1},
	year = {1985},
	note = {184},
	pages = {725-740},
	author = {Holmes-Farley, S.R. and Reamey, R.H. and McCarthy, T.J. and Deutch, J. and Whitesides, G. M.}
}
