HYDROGEN-BONDING EFFECTS IN GLASSY STATE OF RANDOM COPOLYAMIDES

被引：20

作者：

HATAKEYAMA, T ^{[1
]}

KANETSUNA, H ^{[1
]}

机构：

[1] RES INST POLYMERS & TEXT, KANAGAWA, YOKOHAMA, JAPAN

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1973年 / 11卷 / 05期

关键词：

D O I：

10.1002/pol.1973.180110501

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The thermal behavior of random copolyamides which are used as model polymers with hydrogen bonds has been investigated by differential scanning calorimetry (DSC), x-ray diffraction, and IR spectroscopy. The quenched copolyamides have only halo patterns in their x-ray diffraction photographs. When the sample was kept at the glass transition temperature (20C), no change in x-ray diffraction was observed after the treatment. The free amide band in the infrared spectrum at 3450 cm**-**1, however, was decreased in intensity by keeping the sample at the glass transition temperature. The transition peak height observed in a DSC curve also increased in the same experiment. It is concluded that in the case of the random copolyamide, structures corresponding to a given enthalpy of the glassy state can be related to the number of hydrogen bonds.

引用

页码：815 / 823

页数：9

共 24 条

[1]

BESSLER E, 1969, MAKROMOLEKUL CHEM, V122, P30

[2] THE APPLICATION OF DIFFERENTIAL THERMAL ANALYSIS TO THE STUDY OF REACTION KINETICS [J].