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Synthesis of high molecular weight polyacrylamide flocculant by radiation polymerization Among various solvents, mixtures of water–tert‐butyl alcohol and water–acetone were found to be suitable for the synthesis of the high molecular weight polyacrylamide.
The increase of temperature from 40 to 80 °C decreases the intrinsic viscosity [η] of the hybrid polymer from 655.3 to 512.2 mL g −1, which means the polymerization reaction conducted at lower temperature of 40 °C is suitable for the production of high-molecular-weight soluble hybrid polymers. A further increase in temperature may accelerate the decomposition and consumption of the initiators markedly, resulting in lack of sufficient initiators to sustain the corresponding