A polyamide of comparatively low molecular weight was obtained by condensation-polymerization of dimethyl isocinchomeronate and hexamethylenediamine in m-cresol solvent. Further fusion of the product in vacuo yielded a spinnable polyamide-polymer. However, Nylon salt from isocinchomeronic acid and hexamethylenediamine could not be polymerized by itself. The polymerized product thus obtained, having pyridine rings in the main chain, has a suitable melting point to be “melt” spun through the use of Koka-type Flow Tester and gives a new fiber having physical properties for practical use by hot and dry drawing. It has some characteristics to supplement the deffects of Nylon and showed a clear X-ray pattern of fiber.
Condensation-polymerization of dimethyl isocinchomeronate and hexamethylenediamine was carried out by using m-cresol as a solvent in the preceeding experiment. This report deals with the possibility to see whether or not alcohols can be used as a solvent. The result indicated that methanol can be used as a solvent. The fiber thus obtained showed a slightly better characteristics that of the preceeding experiment and this may be attributed to an improvement of spinning technique. The product showing a slightly lower melting point, we have some problems to be determined later if it has the same chemical configuration as that obtained in the preceeding experiment. Also, it is necessary to improve somemore on the reacting conditions.