Calculating the equation of state parameters and predicting the spinodal curve of isotactic polypropylene/poly(ethylene-co-octene) blend by molecular dynamics simulations combined with Sanchez-Lacombe fluid theory

Article Abstract:

Molecular dynamics simulations are used to calculate the equation of state characteristic parameters of isotactic polypropylene (iPP) and poly(ethylene-co-octene) (PEOC), which is used in the Sanchez-Lacombe lattice fluid theory (SLLFT) to describe the respective physical properties. The framework of SLLFT has shown that the spinodal curve for the iPP/PEOC blend can be obtained at the low molecular weights that are used in the simulations

Plastics Material and Resin Manufacturing, Plastics materials and resins, Polypropylene, Molecular dynamics

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Contact line dynamics in the late-stage coalescence of diethylene glycol drops

Article Abstract:

The contact line dynamics of a composite drop formed as a result of the coalescence during the condensation of two diethylene glycol (DEG) drops at -4 degrees Celsius on a silicon surface is investigated. The composite drop is found to relax exponentially toward equilibrium with a typical relaxation time [t.sub.c], which depends on the equilibrium radius of the composite drop.

Glycols, Glycols (Class of compounds), Relaxation (Nuclear physics)

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A microelectrode study of the reduction of phenyl-substituted ethenes in toluene/dimethylformamide mixtures

Article Abstract:

The use of microelectrodes has allowed the study of the phenyl substituted ethenes I, II and III, over a wider range of solution conditions, particularly concentration of the electrolyte and solvent composition. The voltammetry for all 3 compounds show a significant dependence on the medium and the structure of the ethenes.

Usage, Observations, Chemical reactions, Microelectrodes, Phenyl group

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