| 摘要 |
Filaments, having high tenacity, high initial modulus and low elongation-at-break, of poly(hexamethylene adipamide) having the recurring structural unit WHEREIN THE POLYMER CHAINS ARE CHAIN TERMINATED WITH A RADICAL SELECTED FROM THE GROUP CONSISTING OF WHEREIN Ar, R1 and R2 have the significance hereinafter defined, said radical comprising between about 0.35 and 2.0 mol percent of the total mols of iminohexamethyleneimino units AND RADICALS PRESENT IN THE POLYMER, SAID POLY(HEXAMETHYLENE ADIPAMIDE) HAVING A RELATIVE VISCOSITY BETWEEN ABOUT 15 AND 35, MEASURED AS HEREINAFTER DESCRIBED, ARE PREPARED.
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