• AJINKYA ANJIKAR

      Articles written in Bulletin of Materials Science

    • Effect of grafting density on local dynamics in functionalized polymer-grafted nanoparticle systems

      MONMEE PHUKAN AJINKYA ANJIKAR BALAJI V S IYER

      More Details Abstract Fulltext PDF

      Functionalized polymer-grafted nanoparticles (PGNs) form bonds when their coronas overlap. The extent of bond formation between PGNs depends on both the number of grafted arms (grafting density) and the strength of bonds.Using computer simulations, based on a multicomponent model, we examine the role of grafting density in local dynamics of the PGNs. The simulation results show that grafting density has a significant effect on local dynamics in such systems. In particular, we show that force–extension curves characterizing local responses, to constant strain rate pulling, of simple two- and three-particle systems depend on grafting density. Furthermore, by employing oscillatory deformation simulations we show that the local elastic and viscous responses of PGN systems can be nonlinear even at small strain amplitudes. We characterize the nonlinear response using Chebyshev polynomials of the first kind and determine the elastic and viscous Chebyshev coefficients for a simple three-particle model system subjected to oscillatory shear.

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.