期刊
MACROMOLECULES
卷 48, 期 3, 页码 476-482出版社
AMER CHEMICAL SOC
DOI: 10.1021/ma502352x
关键词
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资金
- National Natural Science Foundation of China [21274080, 21204043]
- Key Natural Science Foundation of Shandong Province of China [ZR2011BZ001, ZR2009BZ006]
- Shandong Special Fund for Independent Innovation and Achievements transformation [2014ZZCX01101]
Poly(amidoamine) (PAMAM) dendrimers and hyperbranched poly(amidoamine)s are the first reported and most investigated luminescent polymers containing unconventional chromophores. The luminescence of these compounds is associated with the N-branched tertiary amine moiety, and the oxidation of the tertiary amine is assigned to the emitting source. However, in this paper, a series of novel siloxanepoly(amidoamine) (Si-PAMAM) dendrimers were synthesized by aza-Micheal reaction, and strong blue photoluminescence was observed even with the naked eye when these compounds were excited by a UV lamp. All of these compounds were not oxidated at all. Studies on the molecular structure showed that N -> Si coordination bonds existed in these compounds, and those N -> Si bonds caused the aggregation of carbonyl groups which show the strong luminescence.
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