title: Polyphosphazenes with Immobilized Dyes as Potential Color Filter Materials.
abstract: Red, green, and blue dye molecules were linked covalently to polyphosphazenes to generate soluble, film-forming materials appropriate for the formation of patterned tricolor filters for possible use in liquid crystalline and other display devices or in camera sensors. The monofunctional dyes (a red 1-[(E)-(4-nitrophenyl)diazenyl]-2-naphthol, a green tetraphenylporphyrin [5-(4-hydroxyphenyl)-10,15,20-tetraphenylporphyrin], and a toluidine blue dye) were employed as representative chromophores. The cosubstituents employed included 2,2,2-trifluoroethoxy with and without aryloxy groups or cyclopentanoxy groups. The optical densities were varied by adopting several dye-to-cosubstituent side group ratios. These dyes are models for a wide range of different chromophores that can be linked to polyphosphazene chains.
authors.affiliation: Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.
authors.forename: Zhongjing
authors.initials: Z
authors.lastname: Li
authors.affiliation: Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States.
authors.forename: Harry R
authors.initials: HR
authors.lastname: Allcock
mesh_terms: D004396:Coloring Agents / Q000737:chemistry*; D050866:Liquid Crystals / Q000737:chemistry; D055095:Optics and Photonics; D009943:Organophosphorus Compounds / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*
chemical_list: D004396:Coloring Agents; D009943:Organophosphorus Compounds; D011108:Polymers; C108974:poly(phosphazene)
keywords: LCD; camera sensors; films; filters; liquid-crystal displays; microcrystallinity; optical density; polymeric dyes