Whole range of chain dynamics in entangled polystyrene melts revealed from creep compliance: Thermorheological complexity between glassy-relaxation region and rubber-to-fluid region. 1

Article Abstract:

The rubber(like)-to-fluid region of the creep compliance J(t) results of two nearly monodisperse polystyrene melts in the entanglement region are quantitatively analyzed in terms of the extended reptation theory. The temperature-dependence of the energetic interactions-derived muG(t) form being stronger in a simple manner than that of the entropy-derived extended reptation theory processes accounts fully for the uneven thermorheological complexity occurring in J(t).

Chemical synthesis, Entropy (Physics), Entropy (Thermodynamics)

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Effects of liquid bridge between colloidal spheres and evaporation temperature on fabrication of colloidal multilayers

Article Abstract:

Several parameters like the substrate withdrawing speed and the colloidal suspension temperature are measured and examined to study the effects of liquid bridge and the evaporation temperatures on the manufacture of colloidal multilayers. The results of the study show that the water between the colloidal spheres that is formed by the capillary force highly affects and influences the number of formed colloidal crystal layers.

All Other Miscellaneous Chemical Product and Preparation Manufacturing, Chemical preparations, not elsewhere classified, Colloids, Colloids & Related Products, Thermal properties, Thin films, Multilayered, Multilayered thin films, Structure, Evaporation, Report

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Two-dimensionally self-arranged protein nanoarrays on diblock copolymer templates

Article Abstract:

The structural variety and chemical heterogeneity of self-assembled, hexagonal polystyrene-b-poly(vinylpyridine) micelles are successfully exploited as templates for easy and rapid fabrication of functional protein arrays over a large scale. Spontaneous formation of such polymeric template-guided protein molecules yields high-density protein arrays that exhibit repeat spacings in a nanoscopic dimension.

Nanotechnology, Micelles

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