Polyacrylamide(PHP) was synthesized with pre-hydrolysis method and photoinitiation polymerization mode using acrylanmide and sodium hydroxide as starting material.The influence factors were investigated and the results shows that it is feasible to synthesize PHP with photoinitiation polymerization.The sequence of influencing factors and the optimum technical parameters were determined via orthogonal experiments.The performance of PHP produced at the optimum conditions meets the commercial demands and its fl...