title: Facile synthesis of block copolymers by tandem ROMP and eROP from esters precursors.
abstract: In the present study, block copolymers were first synthesized through a tandem ring-opening metathesis polymerization (ROMP) and conventional enzymatic ring-opening polymerization (eROP) from hydroxyl initiator. Furthermore, a novel synthesis route, single-step eROP from ester precursor was successfully developed to synthesize targeted copolymers. The as-prepared polymers were analyzed by NMR, GPC, DSC, and MALDI-TOF-MS. There was no difference in the characteristic peaks of NMR between the end products obtained from these two synthetic routes. The GPC data showed that the copolymer obtained from single-step eROP was similar to the end product obtained from the traditional multistep synthesis method. Afterward, we used model compounds to carry out the conventional eROP and the single-step eROP. Finally, through the kinetic analysis and structural analysis of the resulting product, a reasonable initiation mechanism for this single-step eROP was elucidated.
authors.affiliation: Department of Polymer Science, College of Chemistry and ‡Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, Jilin University , Changchun 130012, China.
authors.forename: Shidong
authors.initials: S
authors.lastname: Xiang
authors.forename: Qiuping
authors.initials: Q
authors.lastname: Zhang
authors.forename: Gang
authors.initials: G
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Jiang
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.forename: Hang
authors.initials: H
authors.lastname: Zhou
authors.forename: Quanshun
authors.initials: Q
authors.lastname: Li
authors.forename: Jun
authors.initials: J
authors.lastname: Tang
mesh_terms: D004952:Esters / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D058105:Polymerization; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D004952:Esters; D011108:Polymers