Differential Scanning Calorimetry. Study of Amylose and Its Derivatives
- 1 January 1973
- journal article
- research article
- Published by Wiley in Starch ‐ Stärke
- Vol. 25 (5) , 162-166
- https://doi.org/10.1002/star.19730250504
Abstract
Glass transition (Tg) and melting (Tm) temperatures of aliphatic and aromatic esters of amylose have been measured. As the chain length of pendent group is increased both Tg and Tm get decreased. An average value of Tg/Tm≃0.8 obtained for these esters, showed that they are moderately less flexible unsymmetrical polymers.Heat of fusion (ΔHf) for the esters has been calculated. In the case of aliphatic esters, it has been found that as the chain length of pendent group is increased, the heat of fusion is decreased.Keywords
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