Congratulation to Xin Wang for his article “Interfacial interaction-induced temperature-dependent mechanical property of graphene-PDMS nanocomposite” has been accepted by Journal of Materials Science.

  Polydimethylsiloxane (PDMS) and graphene-PDMS nanocomposites (GP) have been widely studied because of their excellent properties, of which the elasticmodulus is very important for various applications. Here, the dependence of the elastic modulus of properly cured PDMS and GP on the temperature has beeninvestigated. For both PDMS and GP, a critical temperature (T_c) has been found, which originates from the strong affinity of PDMS chains to the PDMS networkand graphene sheet, as suggested by molecular dynamics simulation. Graphene inhibits the cross-linking of PDMS close to its surface, which leads to thereduced elastic modulus of GP (E_GP). Only when the temperature is above T_c, E_GP increases with temperature. This is the result of the entropy elasticity of PDMS and the re-initiated cross-linking of PDMS. However, the elastic moduli of PDMS and GP are independent of the temperature below T_c. Here, the studyprovides a guideline for the preparation and using of PDMS and its composite at various temperatures.