ON MECHANISMS OF THERMAL POLYMERIZATION O F DIACETYLENE FRAGMENTS DEPENDING ON CONFIGURATION OF POLYAMIDE CHAINS

New polyamides bearing diacetylene moieties in the backbone chain were synthesized and thermal polymerization of diacethylene groups was stu died. Formation of poly(diacetylenes) of two types containing polymer chains of similar chemical structure [GRAPHICS] although of different configuration and degree of bond conjugation was established. It is su ggested that one of these structures is formed due to reaction in micr ocrystallites with a long-range order of diacetylene fragments, wherea s the other structure is produced in amorphous regions where the long- range order is absent and the free volume is increased.