Publications
52 results found
Paul S, Zhu Y, Romain C, et al., 2015, Ring-opening copolymerization (ROCOP): synthesis and properties of polyesters and polycarbonates, Chemical Communications, Vol: 51, Pages: 6459-6479, ISSN: 1364-548X
Controlled routes to prepare polyesters and polycarbonates are of interest due to the widespread application of these materials and the opportunities provided to prepare new copolymers. Furthermore, ring-opening copolymerization may enable new poly(ester–carbonate) materials to be prepared which are inaccessible using alternative polymerizations. This review highlights recent advances in the ring-opening copolymerization catalysis, using epoxides coupled with anhydrides or CO2, to produce polyesters and polycarbonates. In particular, the structures and performances of various homogeneous catalysts are presented for the epoxide–anhydride copolymerization. The properties of the resultant polyesters and polycarbonates are presented and future opportunities highlighted for developments of both the materials and catalysts.
Winkler M, Romain C, Meier MAR, et al., 2015, Renewable polycarbonates and polyesters from 1,4-cyclohexadiene, GREEN CHEMISTRY, Vol: 17, Pages: 300-306, ISSN: 1463-9262
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- Citations: 161
Giarola S, Romain C, Williams CK, et al., 2015, Production of phthalic anhydride from biorenewables: process design, 12TH INTERNATIONAL SYMPOSIUM ON PROCESS SYSTEMS ENGINEERING AND 25TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING, PT C, Vol: 37, Pages: 2561-2566, ISSN: 1570-7946
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- Citations: 3
Romain C, Williams CK, 2015, Combining Sustainable Polymerization Routes for the Preparation of Polyesters, Polycarbonates, and Copolymers, Editors: Cheng, Gross, Smith, Publisher: AMER CHEMICAL SOC, Pages: 135-146, ISBN: 978-0-8412-3065-1
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- Citations: 3
Romain C, Fliedel C, Bellemin-Laponnaz S, et al., 2014, NHC Bis-Phenolate Aluminum Chelates: Synthesis, Structure, and Use in Lactide and Trimethylene Carbonate Polymerization, ORGANOMETALLICS, Vol: 33, Pages: 5730-5739, ISSN: 0276-7333
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- Citations: 47
Romain C, Williams CK, 2014, Chemoselective polymerization control: From mixed monomer feedstock to copolymers, 248th National Meeting of the American-Chemical-Society (ACS), Publisher: AMER CHEMICAL SOC, ISSN: 0065-7727
Saini PK, Romain C, Williams CK, 2014, Dinuclear metal catalysts: Improved performance of heterodinuclear mixed catalysts for CO<sub>2</sub>-epoxide copolymerization, 248th National Meeting of the American-Chemical-Society (ACS), Publisher: AMER CHEMICAL SOC, ISSN: 0065-7727
Romain C, Choua S, Collin J-P, et al., 2014, Redox and Luminescent Properties of Robust and Air-Stable N-Heterocyclic Carbene Group 4 Metal Complexes, INORGANIC CHEMISTRY, Vol: 53, Pages: 7371-7376, ISSN: 0020-1669
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- Citations: 45
Saini PK, Romain C, Zhu Y, et al., 2014, Di-magnesium and zinc catalysts for the copolymerization of phthalic anhydride and cyclohexene oxide, Polymer Chemistry, Vol: 5, Pages: 6068-6075, ISSN: 1759-9962
Two new homogeneous dinuclear catalysts for the ring-opening copolymerization of phthalic anhydride (PA)/cyclohexene oxide (CHO) and the terpolymerization of phthalic anhydride (PA)/cyclohexene oxide (CHO)/carbon dioxide (CO2) are reported. The catalysts are a di-magnesium (1) and a di-zinc complex (2), both are coordinated by the same macrocyclic ancillary ligand. Both catalysts show good polymerization control and activity (TOF = 97 (1) and 24 (2) h−1), with the di-magnesium complex (1) being approximately four times faster compared to the di-zinc (2) analogue. Their relative reactivity is closely related to that observed for well documented chromium salen/porphyrin catalysts. However, these results represent the first example of a well-defined magnesium catalyst which may be advantageous in terms of obviating use of co-catalysts, low cost, lack of colour and redox chemistry.
Saini PK, Romain C, Williams CK, 2014, Dinuclear metal catalysts: improved performance of heterodinuclear mixed catalysts for CO2-epoxide copolymerization, Chemical Communications, Vol: 50, Pages: 4164-4167, ISSN: 1364-548X
Some of the most active catalysts for carbon dioxide and epoxide copolymerization are dinuclear metal complexes. Whilst efficient homodinuclear catalysts are known, until now heterodinuclear catalysts remain unreported. Here, a facile, in situ route to a catalyst system comprising a mixture of homo- and heteronuclear Zn–Mg complexes is presented. This catalyst system shows excellent polymerization control and exhibits significantly higher activity than the homodinuclear catalysts alone or in combination.
Prabhjot S, Williams CK, Romain C, 2014, Improved Heterodinuclear Mixed Catalysts for CO2/Epoxide Copolymerisation
Romain C, Williams CK, 2014, Chemoselective Polymerization Control: From Mixed-Monomer Feedstock to Copolymers, Angewandte Chemie-International Edition, Vol: 53, Pages: 1607-1610, ISSN: 1521-3773
Dagorne S, Bellemin-Laponnaz S, Romain C, 2013, Neutral and Cationic N-Heterocyclic Carbene Zirconium and Hafnium Benzyl Complexes: Highly Regioselective Oligomerization of 1-Hexene with a Preference for Trimer Formation, ORGANOMETALLICS, Vol: 32, Pages: 2736-2743, ISSN: 0276-7333
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- Citations: 53
Romain C, Dagorne S, Bellemin-Laponnaz S, et al., 2012, Efficient group 4-based catalysts for the stereoselective ring-opening polymerization of lactide
Romain C, Heinrich B, Bellemin-Laponnaz S, et al., 2012, A robust zirconium <i>N</i>-heterocyclic carbene complex for the living and highly stereoselective ring-opening polymerization of <i>rac</i>-lactide, CHEMICAL COMMUNICATIONS, Vol: 48, Pages: 2213-2215, ISSN: 1359-7345
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- Citations: 107
Romain C, Rosa V, Fliedel C, et al., 2012, Highly active zinc alkyl cations for the controlled and immortal ring-opening polymerization of ε-caprolactone, DALTON TRANSACTIONS, Vol: 41, Pages: 3377-3379, ISSN: 1477-9226
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- Citations: 53
Dagorne S, Bellemin-Laponnaz S, Romain C, 2010, Coordination of a novel family of tridentate <i>bis</i>-aryloxide-NHC chelating ligands to Ti(IV) and Zr(IV): Synthesis, structure, reactivity and use of the derived complexes in the controlled ROP of <i>rac</i>-lactide, Publisher: AMER CHEMICAL SOC, ISSN: 0065-7727
Romain C, Gaillard S, Elmkaddem MK, et al., 2010, New Dipyridylamine Ruthenium Complexes for Transfer Hydrogenation of Aryl Ketones in Water, ORGANOMETALLICS, Vol: 29, Pages: 1992-1995, ISSN: 0276-7333
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- Citations: 59
Romain C, Miqueu K, Sotiropoulos J, et al., 2010, Non‐Innocent Behavior of a Tridentate NHC Chelating Ligand Coordinated onto a Zirconium(IV) Center, Angewandte Chemie, Vol: 122, Pages: 2244-2247, ISSN: 0044-8249
Romain C, Brelot L, Bellemin-Laponnaz S, et al., 2010, Synthesis and Structural Characterization of a Novel Family of Titanium Complexes Bearing a Tridentate Bis-phenolate-N-heterocyclic Carbene Dianionic Ligand and Their Use in the Controlled ROP of <i>rac</i>-Lactide, ORGANOMETALLICS, Vol: 29, Pages: 1191-1198, ISSN: 0276-7333
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- Citations: 89
Romain C, Miqueu K, Sotiropoulos J-M, et al., 2010, Non-Innocent Behavior of a Tridentate NHC Chelating Ligand Coordinated onto a Zirconium(IV) Center, ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, Vol: 49, Pages: 2198-2201, ISSN: 1433-7851
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- Citations: 60
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