Started from the liver targeting compounds(glycyrrhizin,glycyrrhetinicacid,bile acid),six(amine-terminated) compounds were prepared via two-step reactions.The NMR experiments provided the direct evidence of the ex...Started from the liver targeting compounds(glycyrrhizin,glycyrrhetinicacid,bile acid),six(amine-terminated) compounds were prepared via two-step reactions.The NMR experiments provided the direct evidence of the existence of amide.The polymers were synthesized by polymerizing of BLG-NCA initiated by each of six amine-terminated compounds.The liver targeting group was introduced to the main chain of the polymer.The molecular weight of the resultant polymers was adjusted by changing the molar ratio of monomer BLG-NCA to initiator.The product structure was characterized by GPC,FTIR and()1H NMR.The results demonstrate that amine-terminated compounds containing liver targeting group could initiate the polymerization of BLG-NCA.展开更多
文摘Started from the liver targeting compounds(glycyrrhizin,glycyrrhetinicacid,bile acid),six(amine-terminated) compounds were prepared via two-step reactions.The NMR experiments provided the direct evidence of the existence of amide.The polymers were synthesized by polymerizing of BLG-NCA initiated by each of six amine-terminated compounds.The liver targeting group was introduced to the main chain of the polymer.The molecular weight of the resultant polymers was adjusted by changing the molar ratio of monomer BLG-NCA to initiator.The product structure was characterized by GPC,FTIR and()1H NMR.The results demonstrate that amine-terminated compounds containing liver targeting group could initiate the polymerization of BLG-NCA.