NOVEL CYCLOMATRIX-TYPE POLYPHOSPHAZENE MICROSPHERES CROSSLINKED WITH OCTACHLOROCYCLOTETRAPHOSPHAZENE: PREPARATION AND CHARACTERIZATION
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
References
- Reference 1 Köhler J, Kühl S, Keul H, Möller M, Pich A. Synthesis and Characterization of Polyamine-Based Cyclophosphazene Hybrid Microspheres. J Polym Sci Pol Chem 2014, 52: 527-536.
- Reference 2 Wang Y, Mu J, Li L, Shi L, Zhang W, Jiang Z. Preparation and properties of novel fluorinated cross-linked polyphosphazene micro-nano spheres. High Perform Polym 2012, 24(3): 229-236.
- Reference 3 Mohanty P, Landskron K. Simple systematic synthesis of size-tunable covalent organophosphonitridic framework nano- and microspheres. New J Chem 2010, 34: 215-220.
- Reference 4 Zhao Z, Ji J. Synthesis and Tribological Behaviors of Epoxy/Phosphazene-Microspheres Coatings under Dry Sliding Condition. Adv Eng Mater 2014, 16(8): 988-995.
- Reference 5 Ozay H, Ozay O. Synthesis and characterization of drug microspheres containing phosphazene for biomedical applications. Colloids and Surfaces A: Physicochem. Eng. Aspects 2014, 450: 99-105.
- Reference 6 Wei W, Huang X, Chen K, Tao Y, Tang X. Fluorescent organic–inorganic hybrid polyphosphazene microspheres for the trace detection of nitroaromatic explosives. RSC Adv 2012, 2: 3765-3771.
- Reference 7 Fu J, Wang M, Zhang C, Zhang P, Xu Q. High hydrogen storage capacity of heteroatom-containing porous carbon nanospheres produced from cross-linked polyphosphazene nanospheres. Mater Lett 2012, 81: 215-218.
- Reference 8 Wang D, Hu Y, Meng L, Wang X, Lu Q. One-pot synthesis of fluorescent and cross-linked polyphosphazene nanoparticles for highly sensitive and selective detection of dopamine in body fluids. RSC Adv 2015, 5: 92762-92768.
- Reference 9 Pan T, Huang X, Wei H, Wei W, Tang X. Intrinsically Fluorescent Microspheres with Superior Thermal Stability and Broad Ultraviolet-Visible Absorption Based on Hybrid Polyphosphazene Material Macromol Chem Phys 2012, 213: 1590-1595.
- Reference 10 Wang M, Fu J, Chen Z, Wang X, Xu Q. In situ growth of gold nanoparticles onto polyphosphazene microspheres with amino-groups for alcohol oxidation in aqueous solutions. Mater Lett 2015, 143: 201-204.