Complexation of titanium alkoxides with pentenoic acid and allylacetoacetate and their hydrolysis and addition reactions with H-silanes

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Kayan A., Hoebbel D., Schmidt H.

JOURNAL OF APPLIED POLYMER SCIENCE, vol.95, no.4, pp.790-796, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 95 Issue: 4
  • Publication Date: 2005
  • Doi Number: 10.1002/app.21315
  • Journal Name: JOURNAL OF APPLIED POLYMER SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.790-796
  • Keywords: NMR, FTIR, silicones, 3-pentenoic acid, inorganic materials
  • Kocaeli University Affiliated: Yes

Abstract

Complexation reactions of titanium tetraethoxide [Ti(OEt)(4)] and titanium tetra-n-butoxide [Ti(OBu")(4)] with 3-pentenoic acid (PA) and allylacetoacetate (AAA), in a 1 : 1M ratio, were studied in ethanol solution at room temperature. C-13-NMR and FTIR spectra showed that all PA and AAA completely reacted with both titanium alkoxides. Hydriclosilane compounds such as triethoxysilane and triethylsilane were added to titanium chelate complexes in a 1 : 1M ratio. The investigation of products by C-13- and (SiNMR)-Si-29 and FTIR showed additions of -SiH to the C=C double bond. The hydrolysis of titanium-PA and AAA complexes, by water in 1 : 4 ratios, resulted in released PA in an amount of 10% and AAA of 20%. The stability of hydrolyzed products was investigated by C-13-NMR, "SiNMR, and FTIR. (C) 2004 Wiley Periodicals, Inc.