title: Characterization of composite phthalocyanine-fatty acid films from the air/water interface to solid supports.
abstract: A commercial vanadyl 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine (VOPc) was dissolved in chloroform and spread on ultrapure water subphase in a Langmuir trough. The floating film was thoroughly characterized at the air-water interface by means of the Langmuir isotherm, Brewster angle microscopy, UV-vis reflection spectroscopy, and infrared measurements carried out directly at the air-water interface. All the results showed the formation of a non-uniform and aggregated floating layer, too rigid to be transferred by the Langmuir-Blodgett (LB) method. For this reason, a mixture of arachidic acid and VOPc was realized, characterized, and transferred by the LB technique on solid substrates. Interface measurements and atomic force microscopy analysis suggested the formation of a uniform arachidic acid film and a superimposed VOPc placed in prone configuration.
authors: Dipartimento di Ingegneria dell'Innovazione, Università degli Studi del Salento, Lecce, Italy.
authors: G
authors: G
authors: Giancane
authors: D
authors: D
authors: Manno
authors: A
authors: A
authors: Serra
authors: V
authors: V
authors: Sgobba
authors: L
authors: L
authors: Valli
mesh_terms: D000388:Air; D002725:Chloroform / Q000737:chemistry; D004537:Eicosanoic Acids / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry*; D054833:Isoindoles; D018625:Microscopy, Atomic Force; D009942:Organometallic Compounds / Q000737:chemistry; D013499:Surface Properties; D014639:Vanadium / Q000737:chemistry; D014867:Water / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D004537:Eicosanoic Acids; D007211:Indoles; D054833:Isoindoles; D009942:Organometallic Compounds; D014639:Vanadium; D014867:Water; D002725:Chloroform; C094477:arachidic acid; C013647:phthalocyanine