NOVEL CYCLOMATRIX-TYPE POLYPHOSPHAZENE MICROSPHERES CROSSLINKED WITH OCTACHLOROCYCLOTETRAPHOSPHAZENE: PREPARATION AND CHARACTERIZATION

• Main Authors: Yasemin Süzen, Simge Metinoğlu
• Format: Article
• Language: English
• Published: Anadolu University 2017-12-01
• Series: Anadolu University Journal of Science and Technology. A : Applied Sciences and Engineering
• Subjects: Octachlorocyclotetraphosphazene; 4 4′-diaminodiphenylmethane; microspheres; self-assembly; polyphosphazene
• Online Access: http://dergipark.gov.tr/aubtda/issue/31308/312012?publisher=anadolu

In this article, highly cross-linked inorganic and organic hybrid polyphosphazene microspheres including amino groups on the surface have been successfully obtained via self-assembly polycondensation approach using 4,4ʹ-diaminodiphenylmethane and octachlorocyclotetraphosphazene which is a new crosslinker. Experiments were performed without adding a surfactant or stabilizer, using only an ultrasonic bath. Otherwise, effect of different molar ratios of the reactants, reaction time and ultrasonic power were investigated on preparing morphologically good spheres. The reactivity of octachlorocyclotetraphosphazene was investigated comparing with hexachlorocyclotriphosphazene which is the most popular crosslinker cyclic phosphazene molecule. The size of acquired microspheres were approximately same, and 1.00μm. The novel microspheres were characterized by SEM, FTIR, ZETA, UV, Fluorescense, XRD and TGA.