Study on the unsaturated hydrogen bond behavior of bio-based polyamide 56
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AbstractIn this paper, the unsaturated hydrogen bonds (H-bonds) of the bio-based polyamide 56 (PA56) with an odd-even unit structure were analyzed by infrared spectroscopy. It was proved that the bio-based PA56 had less saturated H-bonds, which became attenuated and blue-shifted at the temperature exceeding 260°C. Besides, as H-bond was decayed and broken, new unsaturated H-bonds readily formed. Moreover, the experimental results obtained strongly indicate that the unsaturated H-bonds of bio-based polyamide 56 could react with polar metal oxides. Besides, the intercalation of montmorillonite was found to have a significant influence on the hydrogen bond between polymer chains.
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1972 ◽
Vol 37
(6)
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pp. 1990-1992
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1970 ◽
Vol 35
(5)
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pp. 1587-1590
1987 ◽
Vol 52
(11)
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pp. 2673-2679
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2011 ◽
Vol 415-417
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pp. 1703-1707
2019 ◽
Vol 948
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pp. 175-180
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