A thermally induced associative polymer was developed by grafting lower critical solution temperature side chains onto a water-soluble backbone. Based upon the thermodynamic properties of the pendent chains, acting as reversible crosslinkers with varying temperature, such a system was prepared from a poly(ethylene oxide)-modified poly(acrylic acid) (PAA-g-PEO). In aqueous solution this polymer provides an enhancement of the viscosity on heating, the extent of which can be controlled by polymer concentration, grafting ratio and salt concentration.
Посилання на статтю:
Reversible thermothickening of aqueous polymer solutions / D. Hourdet*, F. L'AIIoret and R. Audebert // Polymer. – 1994. – Vol 35. – P. 2624-2630.