Format:
Online-Ressource
ISSN:
1521-3927
Content:
Abstract: Formic acid was found to dissolve sodium carboxymethylcellulose (Na‐CMC) with comparatively slight chain degradation. The dissolution of Na‐CMC in a wide range of degree of substitution from 0.4 to 2.0 occurs under partial formylation of the remaining OH groups of the polymer, i.e., formic acid is the first non‐aqueous, so‐called derivatizing solvent. The Na‐CMC formyl esters, which can be isolated under water‐free conditions, are even soluble in dipolar‐aprotic solvents, and they can be regenerated to Na‐CMC by treating with aqueous solutions of NaOH.
In:
volume:18
In:
number:12
In:
year:2003
In:
pages:1033-1040
In:
extent:8
In:
Macromolecular rapid communications, Weinheim : Wiley-VCH, 1980-, 18, Heft 12 (2003), 1033-1040 (gesamt 8), 1521-3927
Language:
English
DOI:
10.1002/marc.1997.030181206
URN:
urn:nbn:de:101:1-2024010404314972586818
URL:
https://doi.org/10.1002/marc.1997.030181206
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2024010404314972586818
URL:
https://d-nb.info/1315013428/34
URL:
https://doi.org/10.1002/marc.1997.030181206
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