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Acta Chimica Sinica ›› 1955, Vol. 21 ›› Issue (1): 63-68. Previous Articles Next Articles
张德龢, 陈康, 钱人元
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CHANG TE-Ho, CHEN KANG, CHIEN JEN-YUAN
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The molecular weight distribution in two samples of polycaprolactam was determined by fractional precipitation of the polymer from a 1% solution in formic acid (85%) at 25℃, using water as precipitant. The number average molecular weights were determined by titrating carboxyl end-groups of the polymer in benzyl alcohol at 175℃ by 0.05 N KOH in methanol-benzyl alcohol.
CHANG TE-Ho, CHEN KANG, CHIEN JEN-YUAN. THE DETERMINATION OF THE MOLECULAR WEIGHT DISTRIBUTION OF POLYCAPROLACTAM[J]. Acta Chimica Sinica, 1955, 21(1): 63-68.
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