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Modelling nonlinear polymer rheology is still challenging
Marrucci Giuseppe,Ianniruberto Giovanni The Korean Society of Rheology 2005 Korea-Australia rheology journal Vol.17 No.3
The new tube model with variable diameter (Marrucci and Ianniruberto, 2004), recently introduced to interpret new elongational data of polymer melts, is here extended to encompass arbitrary flows, specifically shear flows. The predicted results compare well with existing data of entangled polymer melts. Challenges still remain when the comparison is extended to recent elongational data on entangled solutions by Sridhar.
Modelling nonlinear polymer rheology is still challenging
Giuseppe Marrucci,Giovanni Ianniruberto 한국유변학회 2005 Korea-Australia rheology journal Vol.17 No.3
The new tube model with variable diameter (Marrucci and Ianniruberto, 2004), recently introduced to interpret new elongational data of polymer melts, is here extended to encompass arbitrary flows, specifically shear flows. The predicted results compare well with existing data of entangled polymer melts. Challenges still remain when the comparison is extended to recent elongational data on entangled solutions by Sridhar.
Biased hooking for primitive chain network simulations of block copolymers
Masubuchi Yuichi,Ianniruberto Giovanni,Marrucci Giuseppe,Greco Francesco The Korean Society of Rheology 2006 Korea-Australia rheology journal Vol.18 No.2
Primitive chain network model for block copolymers is used here to simulate molecular dynamics in the entangled state with acceptable computational cost. It was found that i) the hooking procedure rearranging the topology of the entangled network is critical for the equilibrium structure of the system, and ii) simulations accounting for the different chemistry, i.e., with a biased hooking probability based on interaction parameter ${\chi}$ for selection of the hooked partner, generates a reasonable phase diagram.
Biased hooking for primitive chain network simulations of block copolymers
Yuichi Masubuchi,Giovanni Ianniruberto,Giuseppe Marrucci,Francesco Greco 한국유변학회 2006 Korea-Australia rheology journal Vol.18 No.2
Primitive chain network model for block copolymers is used here to simulate molecular dynamics in the entangled state with acceptable computational cost. It was found that i) the hooking procedure rearranging the topology of the entangled network is critical for the equilibrium structure of the system, and ii) simulations accounting for the different chemistry, i.e., with a biased hooking probability based on interaction parameter c for selection of the hooked partner, generates a reasonable phase diagram.