Investigations of physical and mechanical properties of polymeric nanocomposites (review)

Polymer Conformations, Entanglements and Dynamics in Ionic Nanocomposites: A Molecular Dynamics Study

“…A snapshot of a modeled nanocomposite, created by means of VMD software [65], can be seen in Figure 1. The mass of the NP surface beads, m NP = 0.49, is chosen so that the NP mass density, calculated as 3 NP , is ≈1.5 times the mass density of the polymer matrix with monomer mass of m = 1, calculated from ρ = nNm/V(1 − φ) with the simulation box volume V, and NP volume fraction φ = n NP V NP /V. All simulations were started from relaxed configurations of conventional non-ionic nanocomposites [66] with all Coulomb interactions turned off, at pressure P = 4.84 and temperature T = 1.25, resulting in equilibrium mass densities of ≈0.82 for monomers and ≈1.22 for NPs.…”

“…Polymer nanocomposites have received special attention from academia and industry during the last 30 years, due to their improved properties [1][2][3][4][5][6][7] in comparison to polymer blends. Nanoparticle (NP) dispersion [8][9][10][11][12][13][14][15] is necessary for effective reinforcement [9,16] in the matrix and is a prerequisite for property "tuning" [17] and enhancement.…”

Miscibility and Nanoparticle Diffusion in Ionic Nanocomposites

“…In the past three decades, polymer nanocomposites [1,2,3,4], where spherical, cylindrical or plate-like nanoparticles are finely distributed and dispersed [5,6,7] in a polymer matrix, have become of growing importance to industry and academia due to their advanced mechanical [8,9,10], thermal [11,12,13], tribological [14], rheological [15], and electrical properties [16] comparable to polymer blends. Because nanoparticles are increasingly being added to polymers, there is a motivation to explore how nanoparticles impact polymer dynamics [17,18,19,20], structure [21,22,23,24], morphology [25,26,27,28,29], stability [30], and ultimately how these features are correlated and how they impact macroscopic properties [1].…”

Luminescent guest–host composite films based on an azomethine dye in different matrix polymers

“…Polymeric hybrid materials obtained by mixing two or more components, one of them being a polymer is a class of materials widespread due to their large field of application [1][2][3]. The hybrid materials consisting in low molecular weight compounds dispersed in an insulating polymer matrix, are one of the most interesting and researched areas in nanotechnology and composites, already demonstrating their potential as high-performance and multifunctional materials as photonic materials [4], nanogap films for nano-gap sensors [5], luminescent solar concentrator materials [6], polymer thin films quantum dots [7], photochromic materials [8] and photoluminescent yarns [9].…”