Beijing National Laboratory for Molecular Sciences(BNLMS);
Key Laboratory of Polym.Chem.&Physics of Ministry of Education;
Department of Polymer Science&Engineering;
College of Chemistry and Molecular Engineering;
Center for Soft Matter Science and Engineering;
Peking University;
Beijing 100871;
China;
2-Oxabicyclo2.2.2octan-3-one; Ring-opening polymerization; Stereochemistry; Polyester; Thermal properties;