METHOD OF PREPARING RETARDATION FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY
申请人:Konica Minolta, Inc.
公开号:US20150114257A1
公开(公告)日:2015-04-30
A method of preparing a retardation film includes cellulose acetate having an average degree of acetylation of 2.0 to 2.5 and having a moisture content of 1.0 mass % or less, where the retardation film includes a compound having a Van der Waals volume of 450 to 1000 Å3. The retardation film is prepared by a dope preparing step of dissolving cellulose acetate having an average degree of acetylation within the range of 2.0 to 2.5 to prepare a dope; a film product forming step of casting the dope onto a metal belt to form a film product; a film product peeling step of peeling off the film product from the metal belt; a drawing step of drawing the peeled film product; and a drying step at a drying temperature of 140° C. or more.
Symmetrical and non-symmetrical 2,5-diaryl-1,3,4-oxadiazoles: synthesis and photophysical properties
作者:Codruţa C. Paraschivescu、Niculina D. Hădade、Anca G. Coman、Arnaud Gautier、Federico Cisnetti、Mihaela Matache
DOI:10.1016/j.tetlet.2015.05.005
日期:2015.6
We report herein the synthesis of 2,5-diaryl-1,3,4-oxadiazoles containing both electron-donating and withdrawing substituents as well as bis- and tris-2,5-disubstituted-1,3,4-oxadiazoles containing electron-donating substituents. The photophysical properties of the synthesized compounds were studied using UV–Vis and fluorescence spectroscopy. The aryl substitution pattern was found to have a marked