Composite Films from Polystyrene with Hydroxyl end Groups and Carbon Nanotubes
AUTOR(ES)
Granados-Martínez, Francisco Gabriel, Domratcheva-Lvova, Lada, Flores-Ramírez, Nelly, García-González, Leandro, Zamora-Peredo, Luis, Mondragón-Sánchez, María de Lourdes
FONTE
Mat. Res.
DATA DE PUBLICAÇÃO
09/02/2017
RESUMO
Composites from polystyrene with hydroxyl end groups and multiwall carbon nanotubes were fabricated to evaluate their properties. The Carbon Nanotubes (CNTs) were synthetized by chemical vapor deposition technique using ferrocene and benzene as precursors. Polystyrene with hydroxyl end groups was prepared by solution polymerization employing styrene as monomer, 2-mercaptoethanol as chain transfer agent and AIBN as initiator. Thin films were obtained by two methods: pouring into petri dishes and dip-coating slides. CNTs were characterized to identify morphology and characteristic spectroscopic signals. The polystyrene with hydroxyl end groups and composites were analyzed by SEM, FTIR, Raman and UV-vis spectroscopies, Vickers microhardness and electrical resistivity. Raman analysis demonstrated chemical interactions between CNTs and polystyrene. Results showed that resistivity and transparency decreased by increasing CNTs concentrations in composites; transmittance was about 80% with 0.8 wt% content of nanotubes. The highest Vickers hardness registered value was at 1.6 wt% CNTs concentration.
Documentos Relacionados
- Zinc Hexacyanoferrate/Multi-Walled Carbon Nanotubes Films for Rechargeable Aqueous Batteries
- Evaluation of Carbon Nanotubes/Polyaniline Thin Films for Development of Electrochemical Sensors
- Synthesis and Characterization of Polydimethylsiloxane end-Modified Polystyrene from Poly(Styrene – co –Vinyltriethoxysilane) Copolymers
- Carbon nanotubes: From macromolecules to nanotechnology
- Characterization of carbon nanotubes-gold nanoparticles composite film modified electrode and voltammetric determination of mefenamic acid