Study On Polymerization Of Acrylic Acid By Excimer Laser

In this paper, polymerization of acrylic acid was induced by excimer laser(248nm). The molecular weights of polymers of acrylic acid were measured by GPC gelatin chromatogram. The rule of polymerization of acrylic acid was also explored. The results of experiments show that the polymerization is a kind of radical-induced polymerization adding H2O2 as photo-initator. In the experiments, the molecular weights of polyacrylic acid can be increased when the concentration of acrylic acid solution is diluted; the laser irradiating time of decrease and the power of each pulse of increases. In addition, lactic acid was successfully synthesized using propenic acid as a raw material through the medium product, α-chloropropanoic acid. The results and the processes were discussed. Furthermore, the qualitative and quantitative test methods were designed for every step of the process. The results of experiment are expected to provide useful information for its industrialization.