Synthesis and characterization of spinnable sol-gel derived polyborates

Polyborate sol-gel routes have been studied in the context of molecular structure development and spinnability of the sols obtained through the sol-gel process. The similar chemical structures of the lithium polyborates derived from lithium methoxide and tri-n-butyl borate or from lithium methoxide...

Full description

Saved in:
Bibliographic Details
Published in:Journal of non-crystalline solids 1991-07, Vol.130 (2), p.144-156
Main Authors: Venkatasubramanian, N., Wade, Bruce, Desai, P., Abhiraman, A.S., Gelbaum, L.T.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Inorganic and organomineral polymers
Physicochemistry of polymers
Preparation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Polyborate sol-gel routes have been studied in the context of molecular structure development and spinnability of the sols obtained through the sol-gel process. The similar chemical structures of the lithium polyborates derived from lithium methoxide and tri-n-butyl borate or from lithium methoxide and trimethoxyboroxine suggest mechanistic similarities in the two sol-gel reactions. Identical mixed oxide compositions could be formed by heat treatment of the lithium polyborate gels obtained in the two reactions. A controlled hydrolysis and polycondensation of trimethoxyboroxine has also been investigated to form polyborates without the presence of a counterion. The porous gel filaments that can be drawn from these sols may be suitable as precursors for the formation of other ceramic structures such as boron nitride.
ISSN:0022-3093
1873-4812
DOI:10.1016/0022-3093(91)90450-K