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

Authors : Yasemin SÜZEN, Simge METİNOĞLU

Pages : 973-987

Doi:10.18038/aubtda.312012

View : 13 | Download : 14

Publication Date : 2017-12-31

Article Type : Research Paper

Abstract :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.
Keywords : Octachlorocyclotetraphosphazene, 4 4′ diaminodiphenylmethane, microspheres, self assembly, polyphosphazene