Acid-Base Behavior of Carboxylic Acid Groups Covalently Attached at the Surface of Polyethylene : The Usefulness of Contact Angle in Following the Ionization of Surface Functionality

@inproceedings{HolmesFarley2001AcidBaseBO,
  title={Acid-Base Behavior of Carboxylic Acid Groups Covalently Attached at the Surface of Polyethylene : The Usefulness of Contact Angle in Following the Ionization of Surface Functionality},
  author={Stephen Randall Holmes-Farley and John Deutch and George M Whitesides},
  year={2001}
}
Oxidation of polyethylene with chromic acidfsulfuric acid generates a material (PE-C02H) having a high density of carboxylic acid and ketone functionalities in a thin surface layer on the polymer. This paper determines the extent of ionization of the surface and near-surface carboxylic acid groups of these materials in contact with water as a function of pH using three experimental techniques: measurement of attenuated total reflectance infrared (ATR-IR) spectra, measurement of contact angles… CONTINUE READING

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