The electrochemical behavior of new silicon-containing poly (l,3,4-oxadiazole)s is described. These polymers contain tetraphenyl silane units in the main chain and are easily soluble in common organic solvents like chloroform or benzene. Thin transparent films based on the new silicon-containing pol
Preparation and characterization of ordered thin films based on aromatic poly(1,3,4-oxadiazole)s
โ Scribed by B. Schulz; L. Brehmer; B. Dietzel; Th. Zetzsche
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 783 KB
- Volume
- 30
- Category
- Article
- ISSN
- 1381-5148
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โฆ Synopsis
Ultrathin layers of aromatic polyoxadiazoles by using the Langmuir-Blodgett technique are prepared for the first time. The syntheses and characterization of new soluble aromatic poly( 1,3,4-oxadiazole)s are described. The polyoxadiazoles contain tetraphenyl silane units in the main chain or pendent alkylamido groups. Both the precursor route via polyhydrazide followed by thermal cyclization in bulk, and the direct spreading of poly( 1,3,4-oxadiazole)s are used for film forming. The supramolecular structures of all ordered poly(arylene-1,3,4-oxadiazole) LB films are characterized by F'TIR spectroscopy, X-ray scattering and atomic force microscopy, respectively.
๐ SIMILAR VOLUMES
Starting from some new 2,5-disubstituted-1,3,4-oxadiazole difluorides, synthesized by cyclocondensation of dihydrazides with 4-fluorobenzoic acid, novel poly(arylene ether)s were prepared by halo displacement polymerizations with bisphenol A in the presence of potassium carbonate. Model reactions de