摘要
应用PY GC/MS联用技术对聚酯型聚氨酯的结构组成进行了研究。在 550～ 6 0 0℃条件下 ,聚氨酯均可裂解成其组成单体或与其单体相关的特征产物 ,经气相色谱分离、质谱定性鉴定 ,可确定该聚酯型聚氨酯的结构组成。如在聚合物裂解的同时伴随着裂解产物的烷基化处理 ,更有利于聚合物中醇。
Structure of polyester urethanes have been analyzed by pyrolysis gas chromatography/mass spectrometry(PY GC/MS).At 550～600℃,the pyrolysis products of normal polyester urethanes were characteristic of polyurethanes composition,which can be used to determine the polymer chemical structure.Simultanous pyrolysis methylation could give additional information about the composition of alcohols and acids.
出处
《聚氨酯工业》
2001年第1期48-51,共4页
Polyurethane Industry
关键词
聚酯型聚氨酯
热裂解
气相色谱
质谱法
成分
鉴定
结构
组成
polyester urethanes
pyrolysis
gas chromatography/mass spectrometry
composition
identification
