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Poly-amidoamine structure characterization: amide resonance structure of imidic acid (HO-C=N) and tertiary ammonium

机译:聚氨基胺结构表征:亚胺酸(HO-C = N)和叔铵的酰胺共振结构

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摘要

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 (N-15 NMR, C-13 NMR, H-1 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.
机译:近几十年来已经发现并表征了聚酰胺酰胺(PAMAM)的荧光发射现象。 PAMAM中存在酰胺,伯胺和叔胺基团,它们不是传统或典型的荧光发射基团。 PAMAM的荧光发射基团或机制尚不清楚,但需要引起注意。在这项研究中,使用NMR(N-15 NMR,C-13 NMR,H-1 NMR和N-H 2D NMR),IR和MS表征PAMAM。结果证明,在PAMAM中存在与亚氨酸和叔铵基相对应的酰胺共振结构。在PAMAM中发现的新的亚胺酸和叔铵基团可能有助于解释内在荧光现象。

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