Positron states in polypropylene and polystyrene at low temperature

Low Temperature States In

The ground states and low temperature states of the Falicov-Kimball model are studied in the plane of chemical potentials of the two sort of particles involved, for large values of the coupling constant, near the half lled band. For this study, a cluster expansion is introduced which can be used to investigate the eeective interaction energy between the static particles.

Lyophilizing Foot-and Mouth Disease Virus at Low Drying Temperature

Polypropylene /Polystyrene in situ nano reinforced blends fiber: Morphology and properties

Polypropylene / polystyrene blends containing montmorillonite (MMT) were prepared using a twin screw extruder followed by fiber spinning. The melt intercalation of PP and PS alloys was carried out in the presence of a compatibilizer such as maleic anhydride-g-polypropylene (MPP). The crystallization morphology, thermal behaviors and mechanical properties of polypropylene/polystyrene (PP/PS) nan...

Polypropylene /Polystyrene in situ nano reinforced blends fiber: Morphology and properties

Polypropylene / polystyrene blends containing montmorillonite (MMT) were prepared using a twin screw extruder followed by fiber spinning. The melt intercalation of PP and PS alloys was carried out in the presence of a compatibilizer such as maleic anhydride-g-polypropylene (MPP). The crystallization morphology, thermal behaviors and mechanical properties of polypropylene/polystyrene (PP/PS) nan...

Hydrogen- and helium-implanted silicon: Low-temperature positron-lifetime studies.