Mixed solvent and polyacrylamide-blended ethylcellulose liquid crystals

✍ Scribed by Zhao, Chun-tian; Cai, Bao-lian

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 305 KB
• Volume: 44
• Category: Article
• ISSN: 0959-8103
• DOI: 10.1002/(sici)1097-0126(199709)44:1<19::aid-pi770>3.0.co;2-5

✦ Synopsis

The mesophase behaviours of mixed solvent cellulosic liquid crystal systems, ethylcellulose/acrylic acid ] water (EC/AA ] W), ethylcellulose/acrylic acid ] glacial acetic acid (EC/AA ] GAA) and of ethylcellulose/acrylic acid systems blended with a Ñexible polymer, polyacrylamide (PAM ] EC/AA), have been studied. The critical concentrations decreased in all the systems compared with the pure EC/AA system and the morphologies were a †ected, but still cholesteric. The cholesteric properties varied with composition of solvent and polymers.