The use of Cu and Zn salicylaldimine complexes as catalyst precursors in ring opening polymerization of lactides: ligand effects on polymer characteristics
(2011) In Applied Organometallic Chemistry 25(2). p.133-145- Abstract
- A range of monomeric tetra-coordinate copper (II) and zinc (II) complexes based on N,O-bidentate salicylaldimine Schiff base ligands has been synthesized and characterized using various spectroscopic techniques. These complexes were then evaluated as initiators in ring-opening polymerization of lactides at both 70 degrees C and 110 degrees C. The effect of structural changes in the complexes on the ability of these compounds to initiate lactide polymerization as well as the impact on the chemical and physical characteristics of the polymers obtained indicate that the coordination geometry of the metal complex, M-O bond length and substituents on the Schiff base ligand all play a role in the catalyst activity. Electronic factors were... (More)
- A range of monomeric tetra-coordinate copper (II) and zinc (II) complexes based on N,O-bidentate salicylaldimine Schiff base ligands has been synthesized and characterized using various spectroscopic techniques. These complexes were then evaluated as initiators in ring-opening polymerization of lactides at both 70 degrees C and 110 degrees C. The effect of structural changes in the complexes on the ability of these compounds to initiate lactide polymerization as well as the impact on the chemical and physical characteristics of the polymers obtained indicate that the coordination geometry of the metal complex, M-O bond length and substituents on the Schiff base ligand all play a role in the catalyst activity. Electronic factors were dominant in the case of the copper complexes while steric factors prevailed in the case of Zn initiators. Both the Zn and Cu complexes exhibit characteristics of living ring opening polymerization. Copyright (C) 2010 John Wiley & Sons, Ltd. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1791049
- author
- Bhunora, Suraj ; Mugo, Jane ; Bhaw-Luximon, Archana ; Mapolie, Selwyn ; Van Wyk, Juanita ; Darkwa, James and Nordlander, Ebbe LU
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- salicylaldimine complexes, copper Schiff base complexes, zinc Schiff, base complexes, lactide polymerization, ring-opening polymerization
- in
- Applied Organometallic Chemistry
- volume
- 25
- issue
- 2
- pages
- 133 - 145
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- wos:000285932000009
- scopus:78651103905
- ISSN
- 1099-0739
- DOI
- 10.1002/aoc.1728
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
- id
- 17a9ba50-35fe-4fe1-8da0-1699581de4aa (old id 1791049)
- date added to LUP
- 2016-04-01 10:14:58
- date last changed
- 2022-03-04 17:39:38
@article{17a9ba50-35fe-4fe1-8da0-1699581de4aa,
abstract = {{A range of monomeric tetra-coordinate copper (II) and zinc (II) complexes based on N,O-bidentate salicylaldimine Schiff base ligands has been synthesized and characterized using various spectroscopic techniques. These complexes were then evaluated as initiators in ring-opening polymerization of lactides at both 70 degrees C and 110 degrees C. The effect of structural changes in the complexes on the ability of these compounds to initiate lactide polymerization as well as the impact on the chemical and physical characteristics of the polymers obtained indicate that the coordination geometry of the metal complex, M-O bond length and substituents on the Schiff base ligand all play a role in the catalyst activity. Electronic factors were dominant in the case of the copper complexes while steric factors prevailed in the case of Zn initiators. Both the Zn and Cu complexes exhibit characteristics of living ring opening polymerization. Copyright (C) 2010 John Wiley & Sons, Ltd.}},
author = {{Bhunora, Suraj and Mugo, Jane and Bhaw-Luximon, Archana and Mapolie, Selwyn and Van Wyk, Juanita and Darkwa, James and Nordlander, Ebbe}},
issn = {{1099-0739}},
keywords = {{salicylaldimine complexes; copper Schiff base complexes; zinc Schiff; base complexes; lactide polymerization; ring-opening polymerization}},
language = {{eng}},
number = {{2}},
pages = {{133--145}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Applied Organometallic Chemistry}},
title = {{The use of Cu and Zn salicylaldimine complexes as catalyst precursors in ring opening polymerization of lactides: ligand effects on polymer characteristics}},
url = {{http://dx.doi.org/10.1002/aoc.1728}},
doi = {{10.1002/aoc.1728}},
volume = {{25}},
year = {{2011}},
}