  Tuning the heat flow is fundamentally important for the design of advanced
functional materials. Here, polymers are of particular importance because they
provide different pathways for the energy transfer. More specifically, the heat
flow between two covalently bonded monomers is over 100 times faster than
between the two non-bonded monomers interacting via van der Waals (vdW) forces.
Therefore, the delicate balance between these two contributions often provide a
guiding tool for the tunability in thermal transport coefficient k of the
polymeric materials. Traditionally most studies have investigated k in the
linear polymeric materials, the recent interests have also been directed
towards the highly cross-linked polymers (HCP). In this work, using the generic
molecular dynamics simulations we investigate the factors effecting k of HCP.
We emphasize on the importance of the cross-linking bond types and its
influence on the network microstructure with a goal to provide a guiding
principle for the tunability in k. While these simulation results are discussed
in the context of the available experimental data, we also make predictions.
