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Synthesis of organo-functionalized nanosilica via a co-condensation modification using γ-aminopropyltriethoxysilane (APTES)

2008; Elsevier BV; Volume: 35; Issue: 5 Linguagem: Inglês

10.1016/j.ceramint.2008.10.028

1873-3956

Ismail Ab Rahman, Mohammad Jafarzadeh, Coswald Stephen Sipaut,

Layered Double Hydroxides Synthesis and Applications

An easy and swift pathway in preparation of organo-functionalized silica in nanosize range with amine-terminated group via co-condensation method is reported. The process is a self-catalyzed reaction by amine group of organosilane without the addition of ammonia as a catalyst at room temperature. A modified nanosilica with particle size of ∼60 nm, highly monodispersed and low aggregation was successfully produced. The use of methanol as a solvent leads to the increase in particle size. CHN, FTIR and NMR analyses revealed the presence of organo-functional group in the bulk and at the surface of the silica particles.