| Autor: |
Cherkasova, E., Smirnova, L., Smirnov, V. |
| Zdroj: |
Polymer Science - Series B; Mar2006, Vol. 48 Issue 2, p80-83, 4p |
| Abstrakt: |
The molecular mass of chitosan oligomers in the range of (2-5) × 103 was measured using viscometry and gel permeation chromatography. The use of viscometers with a flow time of at least 108 s (0.33 M CH3COOH + 0.3 M NaCl as a solvent, 21°C, [η] = 3.41 M 1.02) makes it possible to determine the molecular mass of chitosan oligomers up to 1.98 × 103. In this case, the maximum divergence in the molecular mass values of oligomers determined by viscometry and gel permeation chromatography does not exceed 4%. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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