An X-ray photoelectron investigation of conducting N-octadecylpyridinium-tetracyanoquinodimethane Langmuir-Blodgett films
β Scribed by R.J. Ward; A.S. Dhindsa; M.R. Bryce; H.S. Munro; M.C. Petty
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 241 KB
- Volume
- 198
- Category
- Article
- ISSN
- 0040-6090
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Ultrathin Γlms of the dimethylhexadecylamine salt of the polyamic acid of pyromellitic dianhydride (PMDA) and oxydianiline (ODA) were deposited onto silver substrates using the Langmuir-Blodgett (LB) technique. These Γlms were transformed to PMDA/ODA polyimide by both thermal and chemical processes.
Using X-ray diffraction at glancing angles, we find that in Langmuir-Blodgett films of lead stearate the lead atoms form plane arrays identical to one set of planes in a bulk crystal, but with little correlation between the planes. The resultin system of twodimensional layers is similar in its stati