Synthesis, Characterization, and Application of Hybrid Inorganic-Organic Composites (K/Na)ZrSi(R)O-x


KAYAN A.

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS, cilt.26, ss.640-647, 2016 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 26 Konu: 3
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1007/s10904-016-0349-z
  • Dergi Adı: JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
  • Sayfa Sayısı: ss.640-647

Özet

Hybrid inorganic-organic composites, (K/Na)ZrSi(R)O-x, were synthesized from the hydrolysis of the mixture of zirconium n-propoxide (Zr(OPrn)(4)) and 3-glycidyloxypropyltrimethoxy silane (GPTS) in 1:1 mol ratio. The hydrolysis reaction was carried out with 0.1 molar HCl in 150 ml of butanol. Then, the synthesized Zr(OPrn)(4)-GPTS-hydrolyzate reacted with KOBut and NaOSiMe3 in 1:1 mol ratio at 40 and 50 A degrees C for 24 h, respectively. After these stages, composites were washed and dried under vacuum. Composites and their oxide prepared at 1250 A degrees C by calcinations were characterized by a combination of powder X-ray diffraction, scanning electron microscope, energy dispersive X-ray, Brunauer-Emmett-Teller analysis, Barrett-Joyner-Halenda analysis, and Fourier transform infrared spectroscopies. These hybrid inorganic-organic composites except oxides were used as catalysts in order to see their activities in the polymerization of epsilon-caprolactone (epsilon-CL). This study showed that new composite materials except their oxides were effective catalyst in epsilon-CL polymerization.