Evaluation of Melting and Crystalline Relaxation Temperatures of Fatty Acid Monolayers on the Water Surface and Their Importances for Molecular Aggregation States in Monolayers
作者： Tisato Kajiyama , Yushi Oishi , Motoko Uchida , Naoaki Morotomi , Jun-ichi Ishikawa
DOI: 10.1246/BCSJ.65.864
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摘要: The melting temperature, Tm and the crystalline relaxation Tαc of fatty acid monolayers on water surface were evaluated by a combination two kinds measurements, subphase Tsp dependence monolayer modulus based π-A isotherm also, electron diffraction, ED patterns monolayer. Tms myristic, palmitic, stearic to be 278, 301, 317 K, respectively, basis both apparent decrease in vs. curve change pattern from Debye ring an amorphous halo. process corresponds elastic viscoelastic characteristics phase due considerable contribution anharmonic thermal molecular vibration. Tαcs palmitic 291 298 appearance break therma...
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