Use of synthesised polymers for the development of new osmotic tensiometers

Compared with conventional water-filled tensiometers, polymer-filled osmotic tensiometers (OTs) can measure a higher matric suction by increasing the osmotic pressure of the water inside the tensiometer. The measuring range of an OT is equal to the osmotic pressure of water inside the OT. All previous research has used commercial polymers in developing OTs and the mechanism of long-term pressure decay of OTs was not found. In this study,...