PETG化学结构的表征和CHDM含量的测定  

Chemical Structural Characterization of PETG and Measurement of CHDM Content

作　　者：王濂生[1] 周燕[2] 陈克权[1] 

机构地区：[1]中国石化上海石化股份有限公司技术中心 [2]中国石化上海石化股份有限公司涤纶事业部,200540

出　　处：《金山油化纤》2005年第3期5-9,共5页Petrochemical Technology in Jinshan

摘　　要：采用核磁共振(1HNMR)法表征了合成样品的化学结构,用1HNMR法和气相色谱(GC)法分别测定了样品中1、4-环己烷二甲醇(CHDM)的含量。结果表明,合成的样品完全符合对苯二甲酸、乙二醇、CHDM共聚物(PETG)的化学结构特征。1HNMR法测定的结果与实际投料值之间存在一定的差异,CHDM的投料在20%-50%范围内时,CHDM的投料值与测定值之间的差异并不大,实际操作时可以将投料值作为实际值处理。The chemical structure of the synthesized sample was characterized with ^1H NMR method,and the content of CHDM was measured with ^1H NMR method and GC method. Result showed that the synthesized sample is absolutely in accordance with the chemical structural characterization of terephthalic acid,EG,and CHDM copolymer（ PETG）, but the result measured with ^1H NMR method was slightly diferent with the practical feed volume. When the feed volume （mole fraction） of CHDM is controlled between 20% to 50% , there are little difference between the practical feed volume of CHDM and its measured value, and the two can be treated equal in practical operation.

关 键 词：聚对苯二甲酸-1、4环己烷二甲醇酯 表征 核磁共振 气相色谱技术 CHDM 化学结构 测定值 PETG 含量 合成样品 

分 类 号：TQ342.9[化学工程—化纤工业] TS202.3[轻工技术与工程—食品科学]