Home >> Designed Monomers & Polymers, Volume 11, Number 2

Thermal, Optical, Electrochemical Properties and Conductivity of Pyrene Monomers

Authors: Aguilar-Martínez, Martha1; Antonio Bautista-Martínez, José2; Rivera, Ernesto3

Source: Designed Monomers & Polymers, Volume 11, Number 2, 2008 , pp. 173-186(14)

Publisher: VSP, an imprint of Brill

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Abstract:

The thermal, optical and electrochemical properties of a series of novel pyrene derivatives, that can be used as promising monomers in the preparation of conducting polymers, have been studied in this work. Four compounds, 1-ethynylpyrene (EP), 1-(1-trimethylsilyl-1,3-butadiinyl)pyrene (TMSBDP), 1-(1-buten-3-inyl)pyrene (BP) and 1-(3,6,8-tris(methylsulfanyl)-1-pyrenyl)-1-methyloxirane (TMSPMO), have been studied. Absorption spectra of these compounds show a maximum absorption wavelength between 372 and 416 nm. Cyclic voltammograms of EP, TMSBDP and BP exhibit irreversible oxidation anodic peaks around 1260-1670 mV vs. Ag+/Ag and in some cases cathodic reduction peaks are also observed. By contrast, TMSPMO shows three anodic oxidation waves, at 1110, 1422 and 1727 mV vs. Ag+/Ag. The conductivities of these compounds have been measured in pressed pellet in the non-doped state giving values in the range of 10-2-10-3 S/cm.

Keywords: PYRENE; THERMAL PROPERTIES; OPTICAL PROPERTIES; CYCLIC VOLTAMMETRY; CONDUCTIVITY

Document Type: Regular paper

DOI: http://dx.doi.org/10.1163/156855508X298071

Affiliations: 1: División de Estudios de Posgrado, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria C.P. 04510 México D.F., México 2: División de Estudios de Posgrado, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria C.P. 04510 México D.F., México;, Email: riverage@iim.unam.mx 3: Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior Ciudad Universitaria C.P. 04510 México D.F., México

Publication date: 2008-03-01

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