The chemistry of furfuryl alcohol resins
β Scribed by J. B. Barr; S. B. Wallon
- Publisher
- John Wiley and Sons
- Year
- 1971
- Tongue
- English
- Weight
- 554 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Furfuryl alcohol resins contain a broad spectrum of compounds. The distribution of these compounds in a given resin varies with the manufacturing conditions. A resin containing a high proportion of low molecular weight constituents has been prepared and separated into fractions. Twelve compounds were separated from the resin; four of these are new compounds. The lower molecular weight constituents can be arranged into four major classes: polyfurfuryl alcohols, polyfurfuryl furans, methylβsubstituted polyfurfuryl furans, and polyfurfuryl ethers.
π SIMILAR VOLUMES
Proton CW and pulse NMR studies for furfuryl alcohol resin carbonized over the temperature range 60-86O"C are performed. The results are interpreted in terms of structural and chemical changes taking place during heat treatment. Heating up to: (i) 240Β°C results in an increase in molecular weight and
## Los 241amo.~, ,Vew Mexico). A study has revealed that major differences exist between the physical flroperties of graf'hites manufactured with y-alumina-polymerized furfury. alcohol resin binders and those made with acid-polymerized resins. The causes of these property differences have been dir
## Two kinds of y-alumina-polymerized furfuryl alcohol resins were synthesized and examined as graphite binder materials. Prior to their use, the resins were characterized according to viscosity and molecular size distribution. Investigation by gas chromatography showed that, relative to acid-pol