陶瓷助剂聚乙二醇分子结构及热变性研究  

Study on structure and thermal denaturation of ceramic additive polyethylene glycol molecular

作　　者：牟微[1,2] 次立杰 张绍岩[1,2,3] 李中秋 陈秋义[4] 吴军召 常美玲[1] 吴雨靓 于宏伟 Mu Wei;Ci Lijie;Zhang Shaoyan;Li Zhongqiu;Chen Qiuyi;Chang Meiling;Wu Yuliang;Yu Hongwei(Shijiazhuang University College of Chemical Technology,Shijiazhuang050035,China;Hebei Building Ceramic Engineering Technology Research Center,Shijiazhuang 051330,China;Shijiazhuang Key Laboratory of Low Carbon Energy Materials,College of Chemical Engineering,Shijiazhuang University,Shijiazhuang 050035,China;Gaoyi LiMa Building Ceramic CorporationLtd.,Shijiazhuang 051330,China)

机构地区：[1]石家庄学院化工学院,河北石家庄050035 [2]河北省建陶工程技术研究中心,河北石家庄0533103 [3]石家庄市低碳能源材料重点实验室,河北石家庄050035 [4]高邑县力马建陶有限公司,河北石家庄0533103

出　　处：《煤炭与化工》2023年第8期130-135,共6页Coal and Chemical Industry

基　　金：石家庄市科学技术研究与发展计划项目(211160313A)。

摘　　要：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_(sCH_(2-聚乙二醇))、ν_(OH_(-聚乙二醇))、δ_(CH_(2-聚乙二醇))、ω_(CH_(2-聚乙二醇))、ρ_(CH_(2-聚乙二醇))和ν_(C-O_(-聚乙二醇))。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_(asCH_(2-polyethylene glycol)),νs_(CH_(2-polyethylene glycol)),ν_(OH_(-polyethylene glycol)),δ_(CH_(2-polyethylene glycol)),ω_(CH_(2-polyethylene glycol)),ρ_(CH_(2-polyethylene glycol)) and ν_(C-O_(-polyethylene glycol)).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).

关 键 词：聚乙二醇 结构 热变性 MIR光谱 TD-MIR光谱 吸收频率 

分 类 号：O657.33[理学—分析化学]