The hemicellulose super absorbent resin was prepared by conventional thermal polymerization and microwave radiation technology respectively

using acrylic acid as grafting monomer

ammonium persulfate-sodium bisulfite as initiator

N

N-methylene-bis-acrylamide as crosslinking agent. Its structure and pattern were characterized by FT-IR and SEM. It was the first time to use the waste liquid produced during the preparation of viscose fiber which contain a large amount of hemicellulose as raw material. The reaction time and water absorption property of the resin prepared by two methods were comparatively analysed. The results showed that the hemicellulose super absorbent resin were successfully synthesized by two methods

and using microwave radiation technology can significantly shorten reaction time and the product also has a higher water absorption and water absorption rate.