【摘要】 曾有人报导用催化裂解-气相色谱技术研究聚甲醛的链结构,国内在这方面工作很少,只做了一般的分析裂解实验,因而出现较多的碎片峰。本文采用催化裂解—气相色谱质谱联用技术,得到了较理想的效果。更多还原

【Abstract】 With the aid of Catalytic Pyrolysis—Gas Chromatography—Mass Spectrometry(PY—GC/MS), all of the characteristic pyrolysis products of Polyoxymethylene(POM) are identified. It is found that different cyclic oligomer from the degradation due to different comonomer used in POM. The relationship of crystalline speed and comonomer content of POM are discussed.更多还原