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    Excess Free Energies of Interaction between 10,12-Pentacosadiynoic Acid (PDA) and Its Mannoside Derivative (MPDA). A Mixed-Monolayer Study

    Year: 1997

    Journal: Langmuir 1997, 13, 1677-1681, 20111221

    Authors: Shaopeng Wang, Yajun Li, Lei Shao, Johnny Ramirez, Peng G. Wang, and Roger M. Leblanc

    Organizations: Department of Chemistry, University of Miami, Miami, Florida 33124

    As potential materials for optic biosensors, the surface and optical properties of bio-functionalized polydiacetylene Langmuir-Blodgett films are interesting and important. p-10,12-Pentacosadiyne-1-Nphenylamide α-D-mannopyranoside (MPDA) was synthesized from 10,12-pentacosadiynoic acid (PDA). Pressure-area isotherms of pure and mixed MPDA/PDA monolayers were obtained. The analysis of the collapse pressures and the excess free energies of the isotherms shows that MPDA/PDA monolayers have good miscibility.