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Complexation of titanium alkoxides with pentenoic acid and allylacetoacetate and their hydrolysis and addition reactions with H‐silanes
Author(s) -
Kayan Asgar,
Hoebbel Dagobert,
Schmidt Helmut
Publication year - 2004
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.21315
Subject(s) - titanium , silanes , hydrolysis , fourier transform infrared spectroscopy , chemistry , nuclear chemistry , chelation , polymer chemistry , silane , inorganic chemistry , organic chemistry , chemical engineering , engineering
Complexation reactions of titanium tetraethoxide [Ti(OEt) 4 ] and titanium tetra‐ n ‐butoxide [Ti(OBu n ) 4 ] with 3‐pentenoic acid (PA) and allylacetoacetate (AAA), in a 1 : 1 M ratio, were studied in ethanol solution at room temperature. 13 C‐NMR and FTIR spectra showed that all PA and AAA completely reacted with both titanium alkoxides. Hydridosilane compounds such as triethoxysilane and triethylsilane were added to titanium chelate complexes in a 1 : 1 M ratio. The investigation of products by 13 C‐ and 29 Si‐NMR and FTIR showed additions of SiH to the CC 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 13 C‐NMR, 29 Si‐NMR, and FTIR. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 95: 790–796, 2005