Molecular Orientation and Aggregation in Mixed Langmuir−Blodgett Films of 5-(4-N-Octadecylpyridyl)-10,15,20-tri-p-tolylporphyrin and Stearic Acid Studied by Ultraviolet−Visible, Fluorescence, and Infrared Spectroscopies

Langmuir ◽  
1998 ◽  
Vol 14 (5) ◽  
pp. 1177-1182 ◽  
Author(s):  
Zhijun Zhang ◽  
Kenichi Nakashima ◽  
Anandi Lal Verma ◽  
Mitsuru Yoneyama ◽  
Keiji Iriyama ◽  
...  
Keyword(s):  
Stearic Acid ◽  
Molecular Orientation ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films

Molecular Orientation of Langmuir−Blodgett Films of Designed Heme Protein and Lipoprotein Maquettes

1998 ◽  
Vol 102 (33) ◽  
pp. 6425-6432 ◽  
Author(s):  
Xiaoxi Chen ◽  
Christopher C. Moser ◽  
Denis L. Pilloud ◽  
P. Leslie Dutton
Keyword(s):  
Molecular Orientation ◽  
Heme Protein ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films

New Strategies for Preparing Electrically Conductive Langmuir-Blodgett Films

1992 ◽  
Vol 247 ◽  
Author(s):  
J. H. Cheung ◽  
R. B. Rosner ◽  
M. F. Rubner
Keyword(s):  
Electrical Properties ◽  
Stearic Acid ◽  
Structural Changes ◽  
Solid State Reactions ◽  
Emeraldine Base ◽  
Structure Property ◽  
Electrically Conductive ◽  
Lb Films ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films

ABSTRACTThe fabrication, structure and electrical properties of new electrically conductive Langmuir-Blodgett (LB) films of polyaniline and polypyrrole have been investigated. Polyaniline in its emeraldine-base form was mixed with stearic acid (PAN-B/SA) to produce stable films at the air-water interface (5/1 or 10/1 mole ratio of PAN-B/SA). These films were then transferred into multilayer films which were found to exhibit conductivities of about 1 S/cm upon doping with hydrochloric acid. The alkyl chains of the stearic acid molecules were found to be distributed randomly throughout the LB film thereby exerting a minimal influence on the electrical properties of the polyaniline phase. In addition to this mixed monolayer approach, a novel method of fabricating highly conductive polypyrrole LB films has been developed. This method is based on the sequential exposure of ferric stéarate LB films to hydrogen chloride (HC1) gas and pyrrole vapor. Each of these two solid state reactions was found to impart dramatic chemical and structural changes to the film. Polypyrrole LB films with conductivities as high as 5 S/cm were produced via this process. The electrical and optical properties of films made by both techniques were examined in order to elucidate their structure/property relationships.

X-ray photoelectron spectroscopy of non-stoichiometric lead sulfide monolayers in stearic acid Langmuir-Blodgett films

1992 ◽  
Vol 210-211 ◽  
pp. 401-403 ◽  
Author(s):  
Xiaogang Peng ◽  
Quan Wei ◽  
Yueshun Jiang ◽  
Xiandong Chai ◽  
Tiejin Li ◽  
...  
Keyword(s):  
Stearic Acid ◽  
Lead Sulfide ◽  
Photoelectron Spectroscopy ◽  
X Ray ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films

Electrical conductivity of α-quinquethiophene/stearic acid Langmuir-Blodgett films doped with iodine

1986 ◽  
Vol 16 (1) ◽  
pp. 17-30 ◽  
Author(s):  
S. Tasaka ◽  
H.E. Katz ◽  
R.S. Hutton ◽  
J. Orenstein ◽  
G.H. Fredrickson ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Stearic Acid ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films
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