Abstract:

In this paper，the importance of developing polyglycolic acid（PGA）product is presented in light of the progress of coal chemical industry. The barrier property，machining performance，biodegradation，wide use and commercialization of PGA are introduced. Various preparation methods about polyglycolic acid resin are compared according to literature，and two synthesis routes of direct polycondensation and ring-opening polymerization are discussed with respect to catalysts and polymerization conditions，and several modification methods of PGA applications are also reviewed. Furthermore，regarding the development trend of new PGA materials in China，the attractive future in this field is prospected.