Shijiazhuang University College of Chemical Technology
Gaoyi County Li Ma Jian Tao Corporation Ltd.
Shijiazhuang Key Laboratory of Low Carbon Energy Materials, College of Chemical Engineering, Shijiazhuang University

基于中红外（MIR）光谱原理开展了聚乙二醇的分子结构研究。试验发现，聚乙二醇分子的红外吸收模式主要包括ν■、ν■、δ■、ω■、ρ■和ν■。采用变温中红外（TD-MIR）光谱进一步开展了聚乙二醇分子热变性研究。结果表明，在303 K~473 K的温度范围内，随着测定温度的升高，聚乙二醇分子主要官能团对应的吸收频率及强度都有一定的改变，进一步进行了热变性机理研究。本项研究拓展了MIR及TD-MIR光谱在重要的陶瓷工业助剂（聚乙二醇）分子结构及热变性的研究范围。

The polyethylene glycol molecular structure had been studied by middle infrared (MIR) spectroscopy. The infrared absorption mode of polyethylene glycol molecular included ν■, ν■, ν■, δ■, ω■, ρ■ and ν■. Temperature-dependent middle infrared (TD-MIR) spectroscopy of polyethylene glycol molecular were researched also. In the temperature range from 303 K to 473 K, the infrared absorption frequency and intensity of polyethylene glycol molecular changed obviously and the thermal denaturation mechanisation were discovered also. The paper demonstrated the key roles of MIR and TD-MIR spectroscopy in the analysis of structure and thermal denaturation of the important ceramic industry additives (polyethylene glycol).

牟 微1，次立杰1，张绍岩1,3，李中秋1，陈秋义2，常美玲1，吴雨靓1，于宏伟1. 陶瓷助剂聚乙二醇分子结构及热变性研究[J]. 煤炭与化工, 2023, 46(8): 130-135.

Mu Wei1, Ci Lijie1, Zhang Shaoyan1,3, Li Zhongqiu1, Chen Qiuyi2, Chang Meiling1, Wu Yuliang1, Yu Hongwei1. Study on Structure and Thermal Denaturation of Ceramic Additive Polyethylene Glycol Molecular. CCI, 2023, 46(8): 130-135.