PY-GC/MS法研究新型耐高温聚酯PCT的热分解  

Study on Pyrolysis of Newly Developed High Temperature Resistant Polyester PCT by Pyrolysis-gas Chromatography/Mass Spectroscopy

作　　者：喻爱芳[1] 李文刚[1] 黄象安[1] 

机构地区：[1]东华大学纤维材料改性国家重点实验室,上海200051

出　　处：《东华大学学报（自然科学版）》2006年第4期125-127,132,共4页Journal of Donghua University(Natural Science)

摘　　要：聚对苯二甲酸1,4环己二甲醇酯(PCT)是一种新型的耐高温聚酯。应用裂解—气相色谱质谱(PY GC/MS)联用技术研究了聚酯PCT的热分解性能,并对聚酯PCT在400,500,600和700℃时的裂解产物分别进行了鉴定。结果表明,不同裂解温度下,产物组成差别很大。600℃裂解时,在总离子流图(TIC)上各特征裂解产物的存在最为明显,可准确判断PCT聚酯的结构组成。Poly （1, 4 - cyclohexylene dimethylene terephthalate） （PCT） is a newly developed high temperature resistant polyester. The thermal degradation of PCT was investigated by pyrolysis-gas chromatography/mass spectroscopy （PY-GCJMS）- The pyrolytic gases of PCT at temperatures 400,500, 600℃ and 700℃ were identified respectively. The results showed that the pyrolysis products were very different at diferent pyrolysis temperatures. At 600℃, the pyrolysis products of PCT were characteristic of PCT composition, which can be used to determine the polymer chemical structure.

关 键 词：聚对苯二甲酸1 4-环己二甲醇酯(PCT) 裂解 气相色谱/质谱法 热分解 

分 类 号：O631.13[理学—高分子化学]