聚合物共混物的红外光谱研究

采用傅立叶变换红外光谱（FTIR）技术，同时将谱图进行归一化处理，通过合谱共混谱研究了氯丁橡胶（CR）／聚氯乙烯（PVC）和CR／聚苯乙烯（PS）两个二元聚合物共混体系的相容性，结果表明，CR与PVC所组成的共混物中组分矣合物红外光谱特征吸收谱带发生较大位移，表现出较强的相互作用，CR与PS所组成的共混物的红外吸收特征峰发生了较小偏移，同时特征峰形略有变化，说明有较弱的相互作用。

Study of Polymer Blends by Infrared Sprectrum

Using Fourier transform infrared spectroscopy(FTIR),compatibilities of poly(chloroprene)(CR)/poly(vinyl chloride)(PVC) blend and CR/polystyrene(PS) blend were studied by comparing synthesis spectrum with blend spectrum.It was found that CR and PVC had strong inter-molecular interaction,incorporating that infrared characteristic absorbing peaks of the groups have prominent change.CR and PS have weak intermolecular interaction,behaving that infrared characteristic absorbing peaks of the groups have small change.