FILTERABILITY OF ACRYLONITRILE POLYMER SOLUTION

synthesis of ethylene bis-stearamide for acrylonitrile-butadiene-styrene polymer

ethylene bis-stearamide is one of the important acrylonitrile-butadiene-styrene ()abs)( polymer additives, which is used as lubricant, slip agent and mold release agent. in this research, ethylene bis-stearamide for abs application was synthesized using stearic acid and ethylene diamine under reflux condition. refluxing prevented ethylenediamine from evaporation and thus the initial molar ratio...

Polymer Solution Thermodynamics:

Up to this point we have considered polymer chains in solvent at various concentrations. In dilute solution, we observed that the segmental density is localized around the center of mass of the coils; the local concentration gradient experienced by each chain drives the swelling of the coils. By contrast, in polymer melts, this swelling force is exactly cancelled by analogous forces exerted by ...

Polymer Solution Thermodynamics:

For concentrated polymer solutions, the free energy of mixing can be described through a “regular solution” model, such as that set forth by Flory, for a mixture of nc polymers and ns solvent molecules. To understand how the model breaks down for lower concentrations, it will be helpful to review its essential features. It is convenient to derive such a model using a lattice construct, though t...

Impaired Erythrocyte Filterability of Spontaneously Hypertensive Rats:

ypertension is 1 of the greatest causes of cardiac events in many countries. In this field, hemorheology has been attracting less attention relative to vascular medicine. However, the deformability of erythrocytes, a major concept in hemorheology, plays a key role in the impaired microcirculation of hypertension.1 The concept of erythrocyte deformability has no strict definition as a physical q...

Numeri al Solution of the Polymer