Journal
POLYMER BULLETIN
Volume 66, Issue 9, Pages 1219-1229Publisher
SPRINGER
DOI: 10.1007/s00289-010-0345-3
Keywords
Regioselective synthesis; Structure-property-relationship; Cellulose ether; 3-O-Propyl celluloses; Reversible flocculation; NMR spectroscopy
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Funding
- DFG (Deutsche Forschungsgemeinschaft) [FKZ 446 JAP 113/341/0-1]
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The synthesis of 3-O-propyl cellulose with degree of substitution (DS) ranging from 0.19 to 1.02 was carried out via 2,6-di-O-thexyldimethylsilyl cellulose. The products were characterized by means of one- and two-dimensional NMR spectroscopy after peracetylation. The dissolution behavior of 3-mono-O-propyl cellulose in water was studied and compared with propyl cellulose derivatives having different degree of substitution and distribution of functional groups. Depending on the DS, exceptionally low flocculation temperatures between 15 and 23 A degrees C were found for 3-O-propyl celluloses.
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