采用变温傅里叶变换衰减全反射红外光谱（ATR-FTIR）技术, 分别研究了聚氯乙烯C-Cl伸缩振动模式（νC-Cl）的红外一维光谱、红外二阶导数光谱、红外四阶导数光谱、红外去卷积光谱和二维相关红外光谱。研究发现：在700～600 cm-1的频率范围内, 聚氯乙烯νC-Cl分别在604、615、637和695 cm-1频率处有红外吸收峰。玻璃化转变温度前, 随着测定温度的升高, 聚氯乙烯νC-Cl红外吸收强度的变化快慢顺序为：604 cm-1＞695 cm-1＞615 cm-1＞637 cm-1。玻璃化转变温度后, 而随着测定温度的升高, 聚氯乙烯νC-Cl红外吸收强度的变化快慢顺序为：695 cm-1＞604 cm-1＞615 cm-1＞637 cm-1。

studied by one-dimensional ATR infrared spectroscopy, second derivative ATR infrared spectroscopy, fourth derivative ATR infrared spectroscopy, deconvolution ATR infrared spectroscopy and two-dimensional infrared spectroscopy with attenuated total reflection Fourier transforminfrared spectroscopy (ATR-FTIR). Before glass transition temperature and between the frequency band700-600cm-1), the band resulting from the C-Cl stretching vibration (νC-Cl) appeared near 604, 615, 637and 695cm-1 and the sequence of intensity changes was 604cm-1＞695cm-1＞615cm-1＞637cm-1with the increase of temperature. After glass transition temperature, the sequence of intensity changes was 695cm-1＞604cm-1＞615cm-1＞637cm-1 with the increase of temperature.