PA1010/66共聚物红外光谱研究

Studies on the IR Spectra of 1010/66 Copolyamides

用红外光谱法研究了ＰＡ１０１０／６６共聚物氢键含量、Ｎ—Ｈ键伸缩振动力常数分布与组成的关系，发现６６盐重量含量为４０％时氢键含量最低，Ｎ—Ｈ伸缩振动力常数分布最宽，解释了ＰＡ１０１０／６６共聚物热力学、结晶、机械等性能随组成改变而变化的原因．

It is investigated that the realations between the hydrogen bond(HB) contents, the distribution of the force contant of N H bond expansion vibration and the copolymer compositions of 1010/66 copolyamides by IR spectra. The result shows that the HB content is the lowest and the distribution of the force contant of N H bond expansion vibration is the widest when 66 amide content is 40 %wt (～50%mol). From the results, the changing reasons of the thermodynamic, crystallization and mechanical properties of the copolymers with the compositions have been explained.