Journal ArticleDOI
Polymerization of Lactide with Zinc and Magnesium β-Diiminate Complexes: Stereocontrol and Mechanism
Bradley M. Chamberlain,Ming Cheng,David Roger Moore,Tina M. Ovitt,Emil B. Lobkovsky,Geoffrey W. Coates +5 more
TLDR
The substituents on the beta-diiminate ligand exert a significant influence upon the course of the polymerizations, affecting both the degree of stereoselectivity and the rate of polymerization.Abstract:
A series of zinc(II) and magnesium(II) alkoxides based upon a β-diiminate ligand framework has been prepared. [(BDI-1)ZnOiPr]2 [(BDI-1) = 2-((2,6-diisopropylphenyl)amido)-4-((2,6-diisopropylphenyl)...read more
Citations
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Journal ArticleDOI
Controlled ring-opening polymerization of lactide and glycolide.
TL;DR: This work focuses on the characterization of the phytochemical components of Lactide ROP and their role in the regulation of cell reprograming.
Journal ArticleDOI
Organocatalytic ring-opening polymerization.
Nahrain E. Kamber,and Wonhee Jeong,Robert M. Waymouth,Russell C. Pratt,and Bas G. G. Lohmeijer,James L. Hedrick +5 more
TL;DR: This paper presents the design of highly efficient families of “living” polymerization strategies for the synthesis of block, graft, and star polymers through controlled methods for the controlled synthesis of dendritic macromolecules.
Journal ArticleDOI
Discrete Metal-Based Catalysts for the Copolymerization of CO2 and Epoxides: Discovery, Reactivity, Optimization, and Mechanism
TL;DR: Well-defined catalysts for epoxide-CO(2) copolymerization and related reactions are reviewed here.
Journal ArticleDOI
The Chemistry of β-Diketiminatometal Complexes
Journal ArticleDOI
Polymers from Renewable Resources: A Perspective for a Special Issue of Polymer Reviews
TL;DR: The field of polymers derived from non-petrochemical feedstocks is gaining a great deal of momentum from both a commercial and academic sense using annually renewable feedstocks such as biomass, for the production of new plastics can have both economic and environmental benefits as mentioned in this paper.
References
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Journal ArticleDOI
Precise control of polyolefin stereochemistry using single-site metal catalysts.
Journal ArticleDOI
Highly stereoelective polymerization of rac-(D,L)-lactide with a chiral schiff's base/aluminium alkoxide initiator
TL;DR: A chiral Schiff's base/aluminium alkoxide initiator bearing a ligand derived from R-(+)-1,1′-binaphthyl-2,2′-diamine was synthesized and used for the stereoelective polymerization of rac-(D,L)-lactide as discussed by the authors.
Journal ArticleDOI
Stereoselective Ring-Opening Polymerization of meso-Lactide: Synthesis of Syndiotactic Poly(lactic acid)
Tina M. Ovitt,Geoffrey W. Coates +1 more
Journal ArticleDOI
Polymerization of l,l-Lactide Initiated by Aluminum Isopropoxide Trimer or Tetramer
TL;DR: In this paper, the rate constants of polymerization of l,l-lactide (LA) initiated with aluminum isopropoxide (Al(OiPr)3) trimer (A3) or tetramer (A4) were determined at 20, 50, 80 (THF solvent), and 120 °C (dioxane-1,4 solvent), respectively.
Journal ArticleDOI
Molecular Design of Single-Site Metal Alkoxide Catalyst Precursors for Ring-Opening Polymerization Reactions Leading to Polyoxygenates. 1. Polylactide Formation by Achiral and Chiral Magnesium and Zinc Alkoxides, (η3-L)MOR, Where L = Trispyrazolyl- and Trisindazolylborate Ligands
Malcolm H. Chisholm,Nancy W. Eilerts,John C. Huffman,Suri S. Iyer,and Martha Pacold,Khamphee Phomphrai +5 more
TL;DR: In this paper, achiral and chiral C3-symmetric complexes LMOR have been synthesized and employed in the ring-opening polymerization of l-, rac-, and meso-lactide in CH2Cl2 at 25 °C and below.
Related Papers (5)
Controlled ring-opening polymerization of lactide and glycolide.
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