caa a22 4500 475765060 CHVBK 20180406123603.0 cr unu---uuuuu 170329e20001101xx s 000 0 eng 10.1007/s003960000371 doi (NATIONALLICENCE)springer-10.1007/s003960000371 Time-resolved near-infrared and two-dimensional near-infrared correlation spectroscopic studies of the polymerization process of silane coupling agents. Dynamic behavior of water molecules in the 3-aminopropyltriethoxysilane-ethanol-water system [Elektronische Daten] [T. Ogasawara, A. Nara, H. Okabayashi, E. Nishio, C. J. O'Connor] The polymerization behavior of 3-aminopropyltriethoxysilane, a process initiated by water molecules, has been examined using time-resolved near-IR and 2D near-IR correlation spectra. By deconvolution of the time-resolved near-IR spectra, the existence of the component bands at 5189, 5265 and 5300 cm−1, whose intensities decrease markedly as the reaction proceeds, has been confirmed in the 5000-5400 cm−1 region. The band at 5189 cm−1 has been assigned to water molecules, while those at 5265 and 5300 cm−1 have been assigned to the strongly and weakly associated silanol groups, respectively. The kinetics of the hydrolysis of the ethoxy groups and of the formation of a siloxane bond have been analyzed using the time-dependent integral intensities of these three bands and the mechanisms of the reactions have been discussed. Evidence for this polymerization process is also clearly evident in the 2D near-IR correlation spectra. Springer-Verlag Berlin Heidelberg, 2000 Key words Time-resolved near-infrared nationallicence Two-dimensional correlation nationallicence 3-Aminopropyltriethoxysilane nationallicence Condensation nationallicence Ogasawara T. Department of Applied Chemistry Nagoya Institute of Technology Gokiso-cho, Showa-ku Nagoya 466-8555, Japan, JP aut Nara A. Nicolet Japan, Osaka Laboratory Terauchi, Toyonaka Osaka 560-0872, Japan, JP aut Okabayashi H. Department of Applied Chemistry Nagoya Institute of Technology Gokiso-cho, Showa-ku Nagoya 466-8555, Japan, JP aut Nishio E. Nicolet Japan, Osaka Laboratory Terauchi, Toyonaka Osaka 560-0872, Japan, JP aut O'Connor C. J. Department of Chemistry The University of Auckland Private Bag 92019, Auckland New Zealand, NZ aut https://doi.org/10.1007/s003960000371 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s003960000371 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ogasawara T. Department of Applied Chemistry Nagoya Institute of Technology Gokiso-cho, Showa-ku Nagoya 466-8555, Japan, JP aut NATIONALLICENCE 700 1- Nara A. Nicolet Japan, Osaka Laboratory Terauchi, Toyonaka Osaka 560-0872, Japan, JP aut NATIONALLICENCE 700 1- Okabayashi H. Department of Applied Chemistry Nagoya Institute of Technology Gokiso-cho, Showa-ku Nagoya 466-8555, Japan, JP aut NATIONALLICENCE 700 1- Nishio E. Nicolet Japan, Osaka Laboratory Terauchi, Toyonaka Osaka 560-0872, Japan, JP aut NATIONALLICENCE 700 1- O'Connor C. J. Department of Chemistry The University of Auckland Private Bag 92019, Auckland New Zealand, NZ aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 475764374 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer