29Si-NMR study of hydrolysis and initial polycondensation processes of organoalkoxysilanes. II. Methyltriethoxysilane

Yoshiyuki Sugahara*, Seigo Okada, Shuji Sato, Kazuyuki Kuroda, Chuzo Kato

*この研究の対応する著者

研究成果: Article査読

83 被引用数 (Scopus)

抄録

The hydrolysis and initial polycondensation processes of methyltriethoxysilane (MTES) have been investigated by high-resolution 29Si-nuclear magnetic resonance spectroscopy (29Si-NMR). MTES was hydrolyzed in the system with MTES:ethyl alcohol:water:HCL = 1:4:x:y; x = 1, 2, 3, 6; y = 1 × 10-4, 1 × 10-2. Signals due to end and middle groups of polysiloxanes formed sub-regions on the basis of the number of hydroxyl groups attached to silicon, and the sub-region for silicon possessing more hydroxyl groups was observed at a lower field. Based on signal intensities, the signals due to the dimers (Me(HO)2SiOSi(OH)2Me and Me(HO)2SiOSi(OH)OEt)Me) and the trimer (Me(HO)2SiOSiMe(HO)OSi(OH)2Me) (MeCH3, EtC2H5) were identified.

本文言語English
ページ(範囲)21-28
ページ数8
ジャーナルJournal of Non-Crystalline Solids
167
1-2
DOI
出版ステータスPublished - 1994 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • セラミックおよび複合材料
  • 凝縮系物理学
  • 材料化学

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