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比较了 ATRP方法制备的聚苯乙烯的红外光谱与传统自由基聚合方法所得的聚苯乙烯红外光谱。发现两类聚苯乙烯的红外光谱基本一致，但 1 440 cm－ 1和 1 490 cm－ 1波数附近的 2个吸收峰的相对强度存在较大的差异。这是由于 ATRP方法所得的聚苯乙烯含有- CH2- Cl形式的化学键，在氯原子的影响下使得 1 440 cm－ 1波数附近的峰明显增强。这一现象也可以部分用于佐证 ATRP反应生成了 C- Cl键。
The infrared spectrum of polystyrene prepared by ATRP method was compared with that of the traditional free radical polymerization method. The infrared spectra of the two types of polystyrene were found to be basically the same, but the relative intensities of the two absorption peaks near 1 440 cm -1 and 1 490 cm -1 were quite different. This is because the polystyrene obtained by the ATRP method has a chemical bond in the form of -CH2-Cl, which significantly increases the peak near 1 440 cm-1 under the influence of chlorine atoms. This phenomenon can also partly be used to support the ATRP reaction to generate C-Cl bonds.