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Polyamide-silica gel hybrids containing metal salts: Preparation via the sol-gel reaction

✍ Scribed by Chilukuri Ver Avadhani; Yoshiki Chujo; Koji Kuraoka; Tetsuo Yazawa

Publisher
Springer
Year
1997
Tongue
English
Weight
406 KB
Volume
38
Category
Article
ISSN
0170-0839

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📜 SIMILAR VOLUMES

Polyimide–Silica Gel Hybrids Containing
Polyimide–Silica Gel Hybrids Containing Metal Salts: Preparation via the Sol–Gel Reaction
✍ C. V. Avadhani; Y. Chujo 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 102 KB 👁 1 views

A facile preparation of polyimide-silica gel hybrids by the simultaneous in-situ formation of polyimides during the hydrolysis-condensation of tetramethoxysilane (TMOS) is reported here. The hydrolysis and condensation of TMOS was carried out in a solution of DMAc containing 5% LiCl, CaCl 2 or ZnCl

Silica Hybrid Containing (R)-2,2′-Binaph
Silica Hybrid Containing (R)-2,2′-Binaphtho-20-crown-6 Moieties via the Sol-Gel Process
✍ Cheng; Yi-Xiang; Liu; Tian-Dong; Chen; Ling-Wu 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 298 KB

## Abstract (__R)__‐6,6′‐Bis (triethoxysilylethen‐2‐yl)‐2,2′‐binaphtho‐20‐crown6 (precursor, __R__‐2) derived from (__R__)‐2,2′‐BINOL derivative was synthesized by Pd‐catalyzed Heck reaction of (__R__)‐6,6′‐dibromo‐2, 2′‐binaphtho‐20‐crown‐6 (__R__‐1) intermediate with vinyltriethoxysilane. The hyd