THE GLASS-TRANSITION OF AMYLOPECTIN MEASURED BY DSC, DMTA AND NMR

被引：312

作者：

KALICHEVSKY, MT ^{[1
]}

JAROSZKIEWICZ, EM ^{[1
]}

ABLETT, S ^{[1
]}

BLANSHARD, JMV ^{[1
]}

LILLFORD, PJ ^{[1
]}

机构：

[1] UNILEVER RES LABS, SHARNBROOK MK44 1LQ, BEDS, ENGLAND

来源：

CARBOHYDRATE POLYMERS | 1992年 / 18卷 / 02期

关键词：

D O I：

10.1016/0144-8617(92)90129-E

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The glass transition in amorphous amylopectin derived from waxy maize starch, and containing between 10 and 22% water, has been studied using differential scanning calorimetry, dynamic mechanical thermal analysis, the Instron texturometer and nuclear magnetic resonance (both pulsed and solid state NMR). The plasticizing effect of water broadly follows the predictions of the Couchman-Karasz equation. The results of the different techniques are compared and the effect of 2-11% crystallinity on the glass transition is investigated.

引用

页码：77 / 88

页数：12

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