Accession Number:

ADA199079

Title:

Investigation of the Thermal Degradation of Alkyl isocyanate Polymers by Direct Pyrolysis Mass Spectroscopy

Descriptive Note:

Interim rept.

Corporate Author:

CONNECTICUT UNIV STORRS LIQUID CRYSTALLINE POLYMER RESEARCH CENTER

Report Date:

1988-09-20

Pagination or Media Count:

28.0

Abstract:

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.

Subject Categories:

  • Organic Chemistry
  • Polymer Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE