Degradation of nylon-6 in ethylene glycol |
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Authors: | P Huczkowski J Kapko R Olesiak |
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Affiliation: | Institute of Organic Chemistry and Technology, Politechnika Krakowska, 31-155 Kraków, Poland |
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Abstract: | Glycolysis of nylon-6 in boiling ethylene glycol was studied. Oligoamides with amino- and hydroxylend-groups were obtained. The following catalysts were examined: zinc acetate, sodium glycolate and poly(phosphoric acid). The reaction rate constants found for first order reaction proved that the amino-groups formed during the degradation take part in acceleration or slowing of the reaction velocity. The reaction rate constants did not change in the polymerization degree range of . Beginning from the polymerization degree in case of zinc acetate, sodium glycolate and without the catalyst the reaction rate constants increased, the reverse effect was observed when poly(phosphoric acid) was used. |
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