Polyheterocycle Langmuir-Blodgett Film
Abstract
Two types of polyheterocycles L-B films have been fabricated: (1) copolymers of pyrrole and (3-alkyl pyrrole93-hexadecypyrrole and octadecylpyrrole) LB films: (2) mixtures of poly 3-alkyl thiophene and stearic acid L-B films. The orientation of single and multi layer films on platinum substrates have 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 substrates. The alkyl substituted pyrrole monomers from highly ordered multi-layers L-B films with hydrocarbon chains perpendicular to the substrates, while the L-B films of polymers of pyrrole and alkylsubstituted pyrrole and more disordered. In the case of mixtures of poly(3- alkyl thiopene) and stearic acid L-B films, the hydrocarbon chain of the acid molecules are highly ordered. The poly (3-alkylthiopene) components, on the other hand, exhibit random orientation of the thiopen moieties.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 03, 1990
- Accession Number
- ADA226513
Entities
People
- Jiayu Chen
- P. D. Hale
- T. A. Skotheim
- T. Inagaki
- Xuezong Yang