Synthesis and Characterization of Nanostructured Blends of Epoxy Resin and Block Copolymers

Authors

  • Rajesh Pandit Tribhuvan University, Central Department of Chemistry, Kirtipur, Kathmandu; Department of Chemistry, Tri-Chandra Campus, Ghantaghar, Kathmandu; Nepal Polymer Institute (NPI), Kathmandu
  • Albrecht Berkessel University of Cologne, Institute for Organic Chemistry, Greinstraße 4, Cologne
  • Ralf Lach Institut für Polymerwerkstoffe e.V., Institute associated with the University of Applied Science Merseburg, Merseburg; Martin-Luther University Halle-Wittenberg Centre of Engineering, Halle/Saale,
  • Wolfgang Grellmann Institut für Polymerwerkstoffe e.V., Institute associated with the University of Applied Science Merseburg, Merseburg; Martin-Luther University Halle-Wittenberg Centre of Engineering, Halle/Saale,
  • Rameshwar Adhikari Tribhuvan University, Central Department of Chemistry, Kirtipur, Kathmandu; Nepal Polymer Institute (NPI), Kathmandu

DOI:

https://doi.org/10.3126/njst.v13i1.7445

Keywords:

nanostructures, block copolymer, FTIR spectroscopy, microindentation hardness

Abstract

Polystyrene–polybutadiene block copolymers having different molecular architectures were epoxidized by using meta-chloroperoxybenzoic acid (MCPBA). Then, the blends with epoxy resin (diglycidyl ether of bisphenol-A; DGEBA) and their nanocomposites with boehmite and layered silicate nanofiller in presence of methylene dianiline (MDA) as a hardener were prepared. The epoxidized copolymers and the composites were characterized by Fourier transform infrared (FTIR) spectroscopy and microindentation technique. In this way, it was possible to tune the morphology of the nanostructured blends of the epoxy resin using the functionalized block copolymer as the template. The presence of nanostructured morphology was attested by the optical transparency of the blends as well as of the composites with nanofiller. The microhardness properties were improved by the incorporation of the nanoparticles, viz. boehmite and layered silicate.

Nepal Journal of Science and Technology Vol. 13, No. 1 (2012) 81-88

DOI: http://dx.doi.org/10.3126/njst.v13i1.7445

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Published

2013-01-21

How to Cite

Pandit, R., Berkessel, A., Lach, R., Grellmann, W., & Adhikari, R. (2013). Synthesis and Characterization of Nanostructured Blends of Epoxy Resin and Block Copolymers. Nepal Journal of Science and Technology, 13(1), 81–88. https://doi.org/10.3126/njst.v13i1.7445

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Articles