Citation: Ali Olad, Sepideh Behboudi, Ali Akbar Entezami. EFFECT OF POLYANILINE AS A SURFACE MODIFIER OF TiO2 NANO-PARTICLES ON THE PROPERTIES OF POLYVINYL CHLORIDE/TiO2 NANOCOMPOSITES[J]. Chinese Journal of Polymer Science, ;2013, 31(3): 481-494. doi: 10.1007/s10118-013-1236-5 shu

EFFECT OF POLYANILINE AS A SURFACE MODIFIER OF TiO2 NANO-PARTICLES ON THE PROPERTIES OF POLYVINYL CHLORIDE/TiO2 NANOCOMPOSITES

Corresponding author: Ali Olad,
Received Date: 4 June 2012
Revised Date: 17 August 2012

Fund Project: The work was financially supported by the University of Tabriz.

Surface of TiO2 nanoparticles was modified with the in situ chemical oxidative polymerization of aniline. Polyaniline modified TiO2 nanoparticles (PANI-TiO2) were characterized with the FT-IR, XRD, SEM and TEM techniques. Results confirmed that PANI was grafted successfully on the surface of TiO2 nanoparticles, therefore agglomeration of nanoparticles decreased dramatically. Polyvinyl chloride nanocomposites filled with 1 wt%-5 wt% of PANI-TiO2 and TiO2 nanoparticles were prepared via the solution blending method. PVC nanocomposites were analyzed with FT-IR, XRD, SEM, TG/DTA, DSC and tensile test techniques. Effect of PANI as surface modifier of nanoparticles was discussed according to the final properties of PVC nanocomposites. Results demonstrated that deposition of PANI on the surface of TiO2 nanoparticles improved the interfacial adhesion between the constituents of nanocomposites, which resulted in better dispersion of nanoparticles in the PVC matrix. Also PVC/PANI-TiO2 nanocomposites showed higher thermal resistance, tensile strength and Youngs modulus compared to those of unfilled PVC and PVC/TiO2 nanocomposites.
- Polymer nanocomposite
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