Synthesis and a Preliminary Characterization of Poly(Propylene)Imine Hexadecylamine Dendrimer (DAB-Am-16) Modified with Methyl Acrylate
Devaney Ribeiro do Carmo, Tayla Fernanda Serantoni da Silveira, Rosângela Silva de Laurentiz, Urquisa Oliveira Bicalho, Leandro Martins, Newton Luiz Dias Filho, Leonardo Lataro Paim
Chemical Science International Journal · pp. 314–324 · Published 15 Jun 2013
10.9734/ACSJ/2013/3818Abstract
This paper describes the reaction of a Poly(propylene)imine hexadecylamine dendrimer (DAB-Am-16) with methyl acrylate. The modified dendrimer obtained (DKMA) was characterized by vibrational spectroscopy, nuclear resonance magnetic (13C), thermogravimetry and scanning electron microscopy. The dielectric properties of DKMA were studied in a temperature range of -40 to 100°C varying the frequency from 10 to 1000 KHz. A relative thermal stability was found for DKMA. The modified dendrimer behaved as an organic insulating (ε' = 5.1). The synthesis performed at basic medium results in a corresponding change in the conformational property of the precursor. The electron microscopy indicated that the dendrimer presented a modified collapsed shape, expected by the proposed route of synthesis.
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