초록 |
Glass ionomer cement (GIC) has been widely used in the dental field because of its fluoride release, chemical adhesion to tooth structure, and available to use in a variety of clinical scenarios. However, the major disadvantages of current glass ionomer cement are short storage period and long curing time. In this study, a well-defined poly(acrylic acid-co-itaconic acid) (PAI) is prepared with controlled composition and molecular weight. The resulting PAI copolymers are investigated by using proton nuclear magnetic resonance spectroscopy, infrared spectroscopy and gel permeation chromatography. The PAI copolymers are further used as an acid part in GIC. The outstanding storage stability is achieved by using the PAI copolymers. The curing time is also controlled by the formulation of GIC. |