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

页码：1075 / 1081

页数：7

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