Synthesis and Rheological Properties of Poly (AcrylamideCo-Acrylic Acid) As Soil Stabilizers

Nowadays, use of polymeric mulch such as polymers based on acrylamides due to being eco-friendly, safety and low cost is developing. In this study, for the first time, poly (acrylamide-co-acrylic acid) was used in small-scale plots in experimental conditions for use in soil as stabilization and preventing its loss. Copolymer based on acrylamide and acrylic acid was synthesized by free radical polymerization. Fourier transform infrared spectroscopy revealed that the carboxylic acid and amide functional groups were successfully polymerized in the material. To calculate the negative charge density of samples, titration method was performed. By increasing density of negative charge of polymer chains, the apparent viscosity decreases with higher rate. It can be seen that in the presence of acrylic acid, the ions shrank and became more like spheres which ultimately results in coil-like configuration. Finally, soil loss was determined using 0.4, 0.6, 1, 2, 3, 4 and 6 gr/m2 of copolymers in water and solutions sprayed On The Soil Surface Before Implementation Of Artificial Rainfall, Also Its Continuity In 30min Rainfall Was Studied.