STM Studies of LB Deposited Alkyl Substituted Polyaniline and Its Corresponding Monomer
Abstract
STM investigations were carried out on monolayers of poly(o- pentadecyl aniline), o-pentadecyl aniline monomer and p-hexadecyl aniline. The polymer was prepared by Langmuir polymerization on a 0.1 M H2SO4 sub phase, containing ammonium persulfate as the oxidizing agent. Monolayers of all the compounds were transferred by the LB technique from the air/liquid interface to a MoS 2 substrate. After annealing, molecular resolution images were obtained for all three compounds. The o-pentadecyl aniline monomer showed a decreased mean molecular area on the MoS 2 surface, compared to that at the liquid/air interface, while the polymer images showed similar packing at both interfaces. The p-hexadecyl aniline showed similar ordering on the substrate as the ortho substituted monomer. The polymer images showed evidence of backbone connectivity. After annealing all monolayers showed high positional and orientational order.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 20, 1993
- Accession Number
- ADA273553
Entities
People
- H. Sasabe
- M. Hara
- P. Quint
- R. S. Duran
- W. Knoll
Organizations
- University of Florida