THE VISCOSITY OF SUPERCOOLED FRUCTOSE AND ITS GLASS-TRANSITION TEMPERATURE

被引:58
作者
OLLETT, AL
PARKER, R
机构
[1] AFRC Institute of Food Research, Norwich Laboratory, Norwich, NR4 7UA, Colney Lane
关键词
D O I
10.1111/j.1745-4603.1990.tb00484.x
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The viscosities of supercooled liquid fructose and glucose are measured between a lower viscosity limit corresponding to 95°C and an upper limit of about 106 Pa.s. The glass transition temperature of fructose is estimated from the viscosity data using different extrapolation procedures. The Vogel‐Tamman‐Fulcher and power‐law equations gave estimates of 283K and 289K, respectively and the Williams‐Landel‐Ferry equation 286K. These values are in agreement with recent calorimetric determinations of the glass transition temperature. Copyright © 1990, Wiley Blackwell. All rights reserved
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页码:355 / 362
页数:8
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