DocumentCode :
2655413
Title :
Poly[2-methoxy-5-(2´;-ethylhexyloxy)-(p-phenylenevinylene)] (MEH-PPV) synthesized via a modified Gilch method and the electrical conductivities of MEH-PPV/MCMB films
Author :
Kamarulzaman, Norlida ; Aziz, Nor Diyana Abdul ; Subban, Ri Hanum Yahaya ; Hamzah, Ahmad Sazali ; Ahmed, Azni Zain ; Osman, Zurina ; Rusdi, Roshidah ; Kamarudin, Norashikin ; Jumali, Nor Saliyana ; Shaameri, Zurina
Author_Institution :
Centre for Nanomater. Res., Univ. Teknol. MARA, Shah Alam, Malaysia
fYear :
2011
fDate :
1-3 June 2011
Firstpage :
63
Lastpage :
68
Abstract :
Poly[2-methoxy-5-(2´-ethylhexyloxy)-(p-phenylenevinylene)] (MEH-PPV) was obtained via the modified Gilch route. The expected polymer was obtained in an overall yield of 19.5%. The structures of all synthesized intermediates and MEH-PPV fully complied with their respective spectroscopic data using 1H and 13C nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopies. Thermal properties of the polymer was studied using simultaneous thermogravimetry and differential scanning calorimetry (TGA/DSC) and morphologies by transmission electron microscopy (TEM). The glass transition temperature, Tg, of MEH-PPV was obtained at 85°C. TEM results showed that the material was amorphous. Results showed that pure MEH-PPV exhibited high impedance at room temperature but the impedance increases in the MEH-PPV/MCMB composite. The MEH-PPV/MCMB composite film shows an increase in conductivity of the order of 2. The enhancement of conductivity of MEH-PPV by the addition of MCMB was attributed to the change in morphology of the film and contribution of electrons by carbon in the polymer matrix.
Keywords :
Fourier transform spectra; conducting polymers; differential scanning calorimetry; electric impedance; electrical conductivity; glass transition; infrared spectra; polymer blends; polymer films; proton magnetic resonance; 13C nuclear magnetic resonance spectroscopy; 1H nuclear magnetic resonance spectroscopy; FTIR; Fourier transform infrared spectroscopy; MCMB addition; MEH-PPV/MCMB composite film; NMR; TEM; TGA-DSC; conductivity enhancement; differential scanning calorimetry; electrical conductivities; electron contribution; film morphology; glass transition temperature; impedance; modified Gilch method; modified Gilch route; overall yield; poly[2-methoxy-5-(2´-ethylhexyloxy)-(p-phenylenevinylene)]; polymer matrix; spectroscopic data; temperature 85 degC; thermal properties; thermogravimetry; transmission electron microscopy; Conductivity; Films; Impedance; Nuclear magnetic resonance; Polymers; Protons; MEH-PPV; ac impedance; conductivity; morphology; synthesis; thermal behaviour;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sustainable Energy & Environment (ISESEE), 2011 3rd International Symposium & Exhibition in
Conference_Location :
Melaka
Print_ISBN :
978-1-4577-0340-9
Type :
conf
DOI :
10.1109/ISESEE.2011.5977111
Filename :
5977111
Link To Document :
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