Zwitterionic Complexes of Group 4 Metal Chlorides Containing a Bis(imino)phenoxide Scaffold: Synthesis, Characterization and Polymerization Studies | Zendy

Chakraborty Debashis | Zendy; Chokkapu Eswara Rao | Zendy; Mandal Mrinmay | Zendy; Gowda Ravikumar R. | Zendy; Ramkumar Venkatachalam | Zendy

Premium

Zwitterionic Complexes of Group 4 Metal Chlorides Containing a Bis(imino)phenoxide Scaffold: Synthesis, Characterization and Polymerization Studies

Author(s) -

Chakraborty Debashis,

Chokkapu Eswara Rao,

Mandal Mrinmay,

Gowda Ravikumar R.,

Ramkumar Venkatachalam

Publication year - 2016

Publication title -

chemistryselect

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 34

ISSN - 2365-6549

DOI - 10.1002/slct.201600909

Subject(s) - cyclohexene oxide , polymerization , polymer chemistry , lactide , ligand (biochemistry) , styrene oxide , ethylene oxide , propylene oxide , chemistry , metal , styrene , oxide , catalysis , polymer , copolymer , cyclohexene , organic chemistry , biochemistry , receptor

Chlorides of group 4 metals containing the bis(imino)phenoxide ligand scaffold were synthesized from a direct reaction between the respective ligand and metal chlorides MCl 4 (M=Ti, Zr and Hf). These complexes were thoroughly characterized using various spectroscopic methods and single crystal X‐ray diffraction studies. They are potent catalysts for the polymerization of rac ‐lactide ( rac ‐LA), L ‐lactide ( L– LA), ϵ ‐caprolactone ( ϵ ‐CL), epoxides such as, rac ‐cyclohexene oxide ( rac ‐CHO), rac ‐propylene oxide ( rac ‐PO), rac ‐styrene oxide ( rac ‐SO) and ethylene, resulting in polymers with high number average molecular weights ( M n ) and narrow molecular weight distributions (MWDs). The kinetic and mechanistic studies associated with the polymerization of lactide, ϵ ‐CL and CHO has been investigated in details.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research