EFFECT OF MAGNETIC FIELD ON RHEOLOGICAL PROPERTIES OF CELLULOSE ETHERS SOLUTIONS

The rheological properties, structure and phase transitions of hydroxypropyl cellulose in ethanol, dimethyl sulfoxide, ethylene glycol solutions ethylcellulose dimethylformamide are studied using viscometry, the cloud-point method, polarization microscopy, optical interferometry a photoelectric apparatus temperature range 280-360 K. temperature-concentration regions isotropic anisotropic phases determined for all systems. type boundary curves diagrams is compared with chemical macromolecules. It shown that constant magnetic field (3.6 kOe) leads to orientation macromolecules solutions. domain arising fixed after evaporation solvent strips film relief. was found flow at 298 K shear rates from 0 15 s-1 typically non-Newtonian liquids. an increase viscosity decrease Both effects depend on direction lines. When rotor-rotation axis parallel power lines change greater than perpendicular field. results discussed representations about changes macromolecule conformation size shape supramolecular particles during under different