Synthesis of well dispersed graphene in conjugated poly(3,4-ethylenedioxythiophene):polystyrene sulfonate via click chemistry
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- Authors:
- DEETUAM, Chutimar
SAMTHONG, Chavakorn
THONGYAI, Supakanok
PRASERTHDAM, Piyasan
SOMWANGTHANAROJ, Anongnat - Author Affiliations:
- Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
- Source:
- Composites science and technology. 93:1-8
- Publication Date:
- 2014-01-01
- Language:
- English
- Abstract:
- The well dispersed graphene in poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) composites was achieved by chemical modification via click chemistry under mild condition in order to improve the electrical conductivity of polymer. Graphene sheets were prepared from natural graphite flake by a modified Hummers method followed by reducing with hydrazine. Graphene and PEDOT:PSS were functionalized with alkyne and azide, respectively followed by reacting via click chemistry at room temperature for 48 h using copper sulfate as catalyst. The successful functionalization and click reaction between terminal alkyne groups (―C≡C) on graphene sheets and terminal azide groups (—N3) of PED-OT:PSS were confirmed by Fourier Transform Infrared (FTIR), Raman and X-ray photoelectron (XPS) spectroscopy. The preliminary test to check the dissimilar dispersibility between graphene oxide and alkyne-modified graphene oxide in mixed water/hexane solvent was performed. Thermogravimetric analysis result exhibited the composites having excellent thermal stabilities due to the incorporation of graphene in PEDOT:PSS; however, clicked composites showed slightly lower thermal stabilities than unclicked ones as a result of cleavages of amide linkages and remaining oxygen-containing functionalities. It was also found that the surface morphologies observed by scanning electron microscope of clicked composites were smoother than those of unclicked composites because of the enhancement of interfacial interaction between graphene sheets and PEDOT:PSS matrix, resulting in a decrease in graphene agglomeration and, in turn, an increase in electrical conductivity.
- Notes:
- Polymer industry, paints, wood
- Subjects:
- Chemical industry parachemical industry
Industrie chimique et parachimique
Mechanics acoustics
Mécanique et acoustique
Metallurgy, welding
Métallurgie, soudage
Polymers, paint and wood industries
Polymères, industries des peintures et bois
Sciences exactes et technologie
Exact sciences and technology
Sciences appliquees
Applied sciences
Industrie des polymeres, peintures, bois
Polymer industry, paints, wood
Technologie des polymères
Technology of polymers
Formes d'application et semiproduits
Forms of application and semi-finished materials
Matériaux composites
Composites
Conductivité électrique
Electrical conductivity
Conductividad eléctrica
Dérivé du triazole
Triazole derivatives
Triazol derivado
Effet concentration
Concentration effect
Efecto concentración
Etude expérimentale
Experimental study
Estudio experimental
Graphène
Graphene
Matériau composite
Composite material
Material compuesto
Modification chimique
Chemical modification
Modificación química
Morphologie
Morphology
Morfología
Nanocomposite
Nanocompuesto
Polymère conducteur
Conducting polymers
Polymère conjugué
Conjugated polymer
Polímero conjugado
Polyélectrolyte
Polyelectrolyte
Polielectrolito
Propriété thermique
Thermal properties
Propiedad térmica
Propriété électrique
Electrical properties
Propiedad eléctrica
Préparation
Preparation
Preparación
Stabilité thermique
Thermal stability
Estabilidad térmica
Styrènesulfonate polymère
Styrenesulfonate polymer
Estireno sulfonato polímero
Thiophène dérivé polymère
Thiophene derivative polymer
Tiofeno derivado polímero
Traitement surface
Surface treatment
Tratamiento superficie
Ethylènedioxythiophène polymère
Graphène oxyde
Réaction click
A. Nano composites
A. Polymer―matrix composites (PMCs)
B. Electrical properties
D. Photoelectron spectroscopy (XPS) - Format:
- Academic Journal
- Database:
- PASCAL Archive
- Journal:
- Composites science and technology
- Volume:
- 93
- Page Start:
- 1
- Page Count:
- 8
- ISSN:
- 02663538
- Publisher:
- Kidlington: Elsevier, 2014.
- Document Type:
- Article
- Physical Description:
- print, 41 ref
