Author: Abe Yoshimoto Kaji Michiko Arimitsu Koji Suyama Ken-ichi Gunji Takahiro
Publisher: Springer Publishing Company
ISSN: 1569-0660
Source: Silicon Chemistry, Vol.1, Iss.5-6, 2002-09, pp. : 367-375
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Abstract
Synthesis, structure, and spectra of novel linear and cyclic isocyanato(methyl)oligosiloxanes with the silicon number up to eight were investigated. The linear and cyclic oligosiloxanes were synthesized selectively in good or appreciable yields by vapor phase and liquid phase hydrolysis, respectively. They were isolated as liquids by distillation under reduced pressure except for cyclic tetrasiloxane and pentasiloxane which were provided as solids. The cyclic trisiloxane was obtained as a mixture of isomers as confirmed by nuclear magnetic resonance (NMR) spectra. The X-ray analysis of cyclic tetra- and pentasiloxane obtained revealed that they have
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