Biodegradable polymer has been widely paid attentions based on it became an important bio-medical material. And aliphatic polyester has become greatly studied and widely applied biodegradable polymer because of its fine properties. Based on consulting of 78 references

the research works in Institute of Chemistry

CAS on bulk modification of aliphatic homo-polyesters

which aimed to improve disadvantages of the polymers on hydrophilicity

degradation rate and bio-compatibility etc were summarized and review ed. In the paper some new aliphatic polyesters

which produced by copolymerization modification and blending modification

and some new characters and performances of the modified aliphatic polyesters were reported. Therefore

after aliphatic polyester undergone bulk modification not only performances of the aliphatic polyester have enhanced

but also the number of aliphatic polyesters has increased. It is benefit to supply more biodegradable polymers for selection of various biomedical applications.