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Issue 90, 2014
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Poly-amidoamine structure characterization: amide resonance structure of imidic acid (HO–C[double bond, length as m-dash]N) and tertiary ammonium

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Abstract

The fluorescence emission phenomena of polyamidoamine (PAMAM) have been discovered and characterized in recent decades. The amide, primary amine, and tertiary amine groups are present in PAMAM, which are not the traditional or typical fluorescence emission groups. The fluorescence emission groups or mechanism of PAMAM were yet not clear but cause cares. In this study, PAMAM was characterized using NMR (15N NMR, 13C NMR, 1H NMR, and N–H 2D NMR), IR, and MS. The results proved that amide resonance structures, corresponding to imidic acid and tertiary ammonium groups, existed in PAMAM. The new imidic acid and tertiary ammonium groups found in PAMAM might help explain the intrinsic-fluorescence phenomena.

Graphical abstract: Poly-amidoamine structure characterization: amide resonance structure of imidic acid (HO–C [[double bond, length as m-dash]] N) and tertiary ammonium

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Publication details

The article was received on 22 Aug 2014, accepted on 16 Sep 2014 and first published on 16 Sep 2014


Article type: Paper
DOI: 10.1039/C4RA09081K
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Citation: RSC Adv., 2014,4, 49535-49540
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    Poly-amidoamine structure characterization: amide resonance structure of imidic acid (HO–C[double bond, length as m-dash]N) and tertiary ammonium

    Y. Ji, X. Yang and Y. Qian, RSC Adv., 2014, 4, 49535
    DOI: 10.1039/C4RA09081K

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