Accession Number : ADA313305

Title :   Poly (p-phenylene vinylene) as Alignment Layers in Liquid Crystal Displays (LCD's) via the Langmuir-Blodgett Technique.

Descriptive Note : Technical rept.,

Corporate Author : CASE WESTERN RESERVE UNIV CLEVELAND OH DEPT OF MACROMOLECULAR SCIENCE

Personal Author(s) : Chang, Andy C. ; Ebersbach, Matthew J. ; Kakimoto, Masa-Aki ; Johnson, D. ; Mann, J. A., Jr

PDF Url : ADA313305

Report Date : 1995

Pagination or Media Count : 44

Abstract : Preparation of alignment layers of PPV via the poly (p-xylene-alpha-diethyl sulphonium perfluorononanoate) precursor has demonstrated initial success. However, UV-vis and grazing angle X-ray techniques have shown that the precursor collapses by centrosymmetric multilayer formation at 25 mN/m and 13 deg C. At these conditions, Z-type deposition on hydrophilic glass results in an irregular lamination/delamination process after 3 iterations. IR measurements have shown nearly complete conversion to PPV by thermal elimination. UV measurements, however, were not found to be representative of the proportion of converted to unconverted units. p1

Descriptors :   *LAYERS, *ALIGNMENT, *LIQUID CRYSTAL DISPLAY SYSTEMS, *POLYPHENYLENES, *MONOMOLECULAR FILMS, THERMAL PROPERTIES, MEASUREMENT, ULTRAVIOLET RADIATION, POLYMERS, LAMINATES, GLASS, X RAYS, SEPARATION, ELIMINATION, FLUORINE COMPOUNDS, HYDROPHILIA, GRAZING ANGLES.

Subject Categories : Polymer Chemistry
      Physical Chemistry
      Crystallography
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE