PYROLYTIC REACTION OF POLYACETYLENE PREPARED WITH DIFFERENT CATALYST SYSTEMS
不同催化体系聚乙炔的热裂解反应

This paper describes the pyrolytic reaction of polyacetylene (PA) prepared with titanium and lanthanide elements based catalyst systems before and after thermo-iso-merization by PGC. A parameter suitable to compare difference in molecular structure of PA's has been suggested and applied to study. Under the given pyrolytic conditions, cis- and trans-PA showed quite similar pyrogram. A smallr change in h1/h5 ratio has been found for Ln-PA than that for Ti-PA with the increase of aging time. These results demonstrates that Ln-PA has better agnig property than Ti-PA.