The cholesteric nature of cellulose triacetate solutions
✍ Scribed by G.H. Meeten; P. Navard
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 485 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0032-3861
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📜 SIMILAR VOLUMES
## Abstract Rapid‐expansion‐of‐supercritical‐solution (RESS) experiments were performed for solutions of cellulose triacetate [CTA; weight‐average molecular weight = 145,700, polydisperity = 2.07] in ethyl acetate [EA] over a range of concentrations and conditions of polymer–solvent phase behavior.
## On-Line Birefringence An Olympus polarizing light microscope was used to investigate the birefringence of vertical filament from CAB /DMA solutions of various concentrations. These were extruded vertically downward from the Harvard infusion withdrawal pump used in the wet spinning studies. There
The fractionated volatile products arising from the stepwise thermal degradation of cellulose triacetate in vaeuo are analysed by gas-solid chromatography, mass spectrometry, i.r. and NMR spectroscopy, and chemical tests. Gas evolution data resemble those reported for the thermal degradation of cell