Investigation of the Thermal Degradation of Alkyl isocyanate Polymers by Direct Pyrolysis Mass Spectroscopy
CONNECTICUT UNIV STORRS LIQUID CRYSTALLINE POLYMER RESEARCH CENTER
Pagination or Media Count:
Thermal degradation mechanisms of alkyl isocyanate homo and copolymers were studied using TGA and DP-MS. Both analyses showed that these polymers begin decomposing at around 190 C under inert or vacuum conditions. DP- MS analysis showed the formation of trace quantities of monomer from polybutyl isocyanate only and none from higher homologs. All polymers studied produced trimers as their principal decomposition product, implying that intramolecular cyclization is the dominant mechanism of decomposition. Isocyanates.
- Organic Chemistry
- Polymer Chemistry