Terpolymerization of CO<sub>2</sub> with Propylene Oxide and ε-Caprolactone Using Zinc Glutarate Catalyst

Hwang, Youn‐Ho; Jung, Jae-Hwan; Ree, Moonhor; Kim, Hee‐Soo

doi:10.1021/ma034498b

Cited by 83 publications

(49 citation statements)

References 19 publications

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“…Furthermore, these characteristics are known to make CS 2 more reactive than carbon dioxide (CO 2 ). [26][27][28][29][30] Owing to the overall nonpolar characteristic, the CS 2 molecule might have a favorable level of affinity for the n-hexyl side groups. Because of the local polarities, the CS 2 molecule might also have a favorable level of affinity for the amide backbone.…”

Section: Resultsmentioning

confidence: 99%

Reversible conformation-driven order–order transition of peptide-mimic poly(n-alkyl isocyanate) in thin films via selective solvent-annealing

et al. 2012

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We report for the first time the conformational and structural details of peptide-mimic poly(n-hexyl isocyanate) (PHIC). PHIC is a representative poly(n-alkyl isocyanate)s, which have received significant attention because of their unique stiff chain characteristics and potential applications in various fields. A well-ordered hexagonal close packing structure of PHIC with 8 3 helical conformation was clearly observed in the nanoscale thin films that were selectively annealed with carbon disulfide (CS 2 ). A well-ordered multi-bilayer structure of the polymer with b-sheet conformation was also clearly formed in the films that were selectively annealed with toluene. In addition, a fully reversible transformation between these two self-assembled structures was demonstrated by consecutive annealings with CS 2 and toluene.

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Section: Resultsmentioning

confidence: 99%

Reversible conformation-driven order–order transition of peptide-mimic poly(n-alkyl isocyanate) in thin films via selective solvent-annealing

et al. 2012

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“…Although a heterogeneously catalyzed terpolymerization with CO 2 , propylene oxide and ecaprolactone has been carried out before, [38] to our knowledge, a terpolymerization of CO 2 , cyclohexene oxide and lactide had not been done before. Previously, polycarbonate-co-polylactide polymers had only been made by ring opening polymerization of cyclic carbonates and lactide, which bears the drawback of a tedious cyclic carbonate monomer preparation.…”

Section: Terpolymerization Experimentsmentioning

confidence: 99%

Alternating Copolymerization of Carbon Dioxide and Cyclohexene Oxide and Their Terpolymerization with Lactide Catalyzed by Zinc Complexes of N,N Ligands

Kröger

Folli²,

Walter³

et al. 2006

Adv Synth Catal

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Abstract:For the alternating copolymerization of CO 2 and cyclohexene oxide, a variety of zinc acetate complexes with new aminoimidoacrylate ligands has been synthesized and tested as catalysts. All complexes catalyzed the reaction and structure-activity investigations revealed that the highest activities and selectivities were reached when the ligand's aromatic rings were 2,6-substituted by alkyl groups of different size (isopropyl versus methyl) and when the ligand backbone embodied an electron-withdrawing cyano group. Furthermore, these complexes catalyzed the terpolymerization of CO 2 , cyclohexene oxide and lactide to give poly(cyclohexyl carbonateco-lactide) and the composition of the polymer was adjustable by the monomer feed.

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“…All other chemicals and reagents were purchased from Aldrich Chemical Company and used as received. Zinc glutarate (ZnGA) was synthesized from zinc oxide and glutaric acid in accordance with a method described previously [25][26][27][28][29][30][31].…”

Section: Materials and Synthesismentioning

confidence: 99%

Imprinting of nanopores in organosilicate dielectric thin films with hyperbranched ketalized polyglycidol

Kim

Lee

et al. 2005

Polymer

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Terpolymerization of CO₂ with Propylene Oxide and ε-Caprolactone Using Zinc Glutarate Catalyst

Cited by 83 publications

References 19 publications

Reversible conformation-driven order–order transition of peptide-mimic poly(n-alkyl isocyanate) in thin films via selective solvent-annealing

Reversible conformation-driven order–order transition of peptide-mimic poly(n-alkyl isocyanate) in thin films via selective solvent-annealing

Alternating Copolymerization of Carbon Dioxide and Cyclohexene Oxide and Their Terpolymerization with Lactide Catalyzed by Zinc Complexes of N,N Ligands

Imprinting of nanopores in organosilicate dielectric thin films with hyperbranched ketalized polyglycidol

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Terpolymerization of CO2 with Propylene Oxide and ε-Caprolactone Using Zinc Glutarate Catalyst

Cited by 83 publications

References 19 publications

Reversible conformation-driven order–order transition of peptide-mimic poly(n-alkyl isocyanate) in thin films via selective solvent-annealing

Reversible conformation-driven order–order transition of peptide-mimic poly(n-alkyl isocyanate) in thin films via selective solvent-annealing

Alternating Copolymerization of Carbon Dioxide and Cyclohexene Oxide and Their Terpolymerization with Lactide Catalyzed by Zinc Complexes of N,N Ligands

Imprinting of nanopores in organosilicate dielectric thin films with hyperbranched ketalized polyglycidol

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Terpolymerization of CO₂ with Propylene Oxide and ε-Caprolactone Using Zinc Glutarate Catalyst