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化学学报
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化学学报 ›› 1998, Vol. 56 ›› Issue (6): 600-605. 上一篇    下一篇

研究论文

用FTIR定量测定聚对苯二甲酸乙二酯晶区和非晶区反式构象含量

陈重酉;夏方遒;姚洪伟;滕新君;孙家昌;马瑞申   

  1. 青岛大学纺织服装学院;青岛海洋大学计算机系;复旦大学高分子科学系
  • 发布日期:1998-06-15

Quantitative measurement of the trans conformation content of crystalline and amorphous regions within poly(ethylene terephthalate) by means of FTIR

CHEN ZHONGYOU;XIA FANGQIU;YAO HONGWEI;TENG XINJUN;SUN JIACHANG;MA RUISHEN   

  • Published:1998-06-15

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616

被引次数

3 | 1

用傅里叶变换红外分光光度计测定不同条件下退火处理的聚对苯二甲酸乙二酯膜的谱图, 用谱带分离技术对归属于反式构象的1340cm^-^1谱带进行阻尼最小两乘分峰处理, 结合属左右式构象贡献的1454cm^-^1谱带, 用线性回归分析的方法获得晶区反式构象、非晶区反式构象、非晶区左右式构象的百分含量。

关键词: 定量分析, 红外分光光度法, 聚对苯二甲酸乙二酯, 构象, 付里叶变换, 晶态区

In this paper, the spectra of PET films annealed under different conditions were measured by means of Fourier-transform infrared spectrometer. The infrared spectra reconstruction technology could be used for the quench least-square peak solution treatment of the 1340cm^-^1 band, which belongs to trans conformation mode. With the help of the 1454cm^-^1 band contributed by the quauche conformation and through multivariate linear regression analysis, the content percentage of the crystalline region trans conformation, the amorphous region trans conformation, and the amorphous region gauche conformation were obtained.

Key words: QUANTITATIVE ANALYSIS, INFRARED SPECTROPHOTOMETRY, POLYETHYLENE TEREPHTHALATE, CONFORMATION, FOURIER TRANSFORM, CRYSTALLINE REGION

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