Poly(heterocycle) Langmuir-Blodgett films

Journal Article · · Langmuir; (USA)

DOI:https://doi.org/10.1021/la00090a002· OSTI ID:7203035

Yang, X Q; Chen, J; Hale, P D; Inagaki, T; Skotheim, T A ^[1]; Fischer, D A ^[2]; Okamoto, Y ^[3]; Samuelsen, L; Tripathy, S ^[4]; Hong, K; Watanabe, I; Rubner, M F ^[5]; den Boer, M L ^[6]

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1. Brookhaven National Lab., Upton, NY (USA)
2. Exxon Research and Engineering, Annandale, NJ (USA)
3. Polytechnic Univ., Brooklyn, NY (USA)
4. Lowell Univ., MA (USA)
5. Massachusetts Institute of Technology, Cambridge (USA)
6. City Univ. of New York, NY (USA)

Two types of poly(heterocycle) Langmuir-Blodgett films have been fabricated: (1) copolymers of pyrrole and 3-alkylpyrrole (3-hexadecylpyrrole and octadecylpyrrole) LB films; (2) mixtures of poly(3-alkylthiophene) and stearic acid LB films. The orientation of single-layer and multilayer films on platinum substrates has been studied by near edge X-ray absorption fine structure (NEXAFS) spectroscopy, which also provides information about interaction between the aromatic groups and the metallic substrate. In the case of mixtures of poly(3-alkylthiophene) and stearic acid LB films, the hydrocarbon chains of the stearic acid molecules are highly ordered. The poly(3-alkylthiophene) components, on the other hand, exhibit random orientation of the thiophene moieties. The orientation of the hydrocarbon chain of the poly(3-alkylthiophene) varies with the chain length, from random to highly ordered along the surface normal of the substrate, as the chain length changes from 4 to 18 carbon units.

• DOE Contract Number: FG02-84ER13289
• OSTI ID: 7203035
• Journal Information: Langmuir; (USA), Journal Name: Langmuir; (USA) Vol. 5:6; ISSN 0743-7463; ISSN LANGD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400200 -- Inorganic
Organic
& Physical Chemistry
ABSORPTION SPECTROSCOPY
AZOLES
DATA
DATA ANALYSIS
EXPERIMENTAL DATA
FABRICATION
FILMS
HETEROCYCLIC COMPOUNDS
INFORMATION
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POLYMERS
PYRROLES
SPECTROSCOPY
THIN FILMS