A Thermoanalytical Study of Mixtures of Polyvinyl Alcohol with Succinic Acid after Plastic Deformation under High Pressure

被引：1
|
作者：
Zhorin, V. A. [1 ]
Kiselev, M. R. [2 ]
Kotenev, V. A. [2 ]
机构：
[1] Russian Acad Sci, Semenov Inst Chem Phys, Moscow 119991, Russia
[2] Russian Acad Sci, Frumkin Inst Phys Chem & Electrochem, Moscow 117915, Russia
来源：
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2017年 / 53卷 / 06期
关键词：
FLOW; POLYMERS;
D O I：
10.1134/S2070205117060247
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Mixtures of polyvinyl alcohol and amber acid of different composition were subjected to plastic deformation under the pressure of 1.5 GPa at the equipment of the Bridgman-anvil type and the DSC method was used to study heat processes in nondeformed and deformed samples. It is shown that two processes occur simultaneously in PVA under heating: the endothermal process of decomposition of intermolecular bonds and mass decrease related to loss of adsorbed water. After plastic deformation, a decrease in the enthalpy of melting occurred in both components of the PVC-amber-acid mixtures. A low-temperature phase with T (melt) 30-40A degrees C lower than in the initial polymer was formed in the acid and a decrease in the relaxation process enthalpy was observed in the polymer.
引用
收藏
页码：1075 / 1081
页数：7
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