| 摘要 |
-6- A method is described for preparing high molecular weight polyamides comprising forming a slurry of the dihydrochloride of (see formula) where X is C1, Br or lower alkyl (1-6 C atoms), and y is C1, Br, lower alkyl (1-6 C atoms) or hydrogen in a solvent for the diamine, reacting the dihydrochloride with a tertiary amine in an amount at least equivalent to the HC1 of the dihydrochloride to form free diamine in solution and treating the solution with an aromatic diacid chloride to form the polaymide.
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