A comparative study of pH and temperature on rheological behaviour between Polyacrylamide (PAM) and its modified PAMJin Kwei Koh, Chin Wei Lai, Mohd Rafie Johan, Sanjay Mavinkere Rangappa and Suchart SiengchinE3S Web Conf., 355 (2022) 02005DOI: https://doi.org/10.1051/e3sconf/202235502005