Polyurethanes from Direct Organocatalytic Copolymerization of p-Tosyl Isocyanate with Epoxides.
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Embargo End Date:
2021-09-29
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ArticleKAUST Department
Academic AffairsChemical Science Program
KAUST Catalysis Center (KCC)
Office of the VP
Physical Science and Engineering (PSE) Division
Polymer Synthesis Laboratory
KAUST Grant Number
BAS/1/1374-01-01Date
2020-11-17Embargo End Date
2021-09-29Submitted Date
2020-08-31Permanent link to this record
http://hdl.handle.net/10754/665550
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The direct copolymerization of p -tosyl isocyanate (TSI) with epoxides, initiated by onium salts in the presence of trialkylborane, to produce polyurethanes is reported. The rate of copolymerization and the (regio)selectivity were investigated in relation to the trialkylborane and initiator used. Under optimized conditions such copolymerizations have been successfully performed for a wide range of epoxides, including ethylene oxide, propylene oxide, 1-octene oxide, cyclohexene oxide, and allyl glycidyl ether. These copolymerizations afford a new category of polyurethanes, clear of side products such as cyclic oxazolidinone, isocyanurate, and poly(isocyanate) linkages. The experimental conditions used in this work are compatible with those for the organocatalytic (co)polymerization of other oxygenated monomers and CO 2 , holding the potential for their terpolymerization with p -tosyl isocyanate and the development of new materials with unprecedented properties.Citation
Jia, M., Hadjichristidis, N., Gnanou, Y., & Feng, X. (2020). Polyurethanes from Direct Organocatalytic Copolymerization of p-Tosyl Isocyanate with Epoxides. Angewandte Chemie International Edition. doi:10.1002/anie.202011902Sponsors
This research work is supported by KAUST under baseline funding (BAS/1/1374-01-01).Publisher
WileyPubMed ID
32989882Additional Links
https://onlinelibrary.wiley.com/doi/10.1002/anie.202011902ae974a485f413a2113503eed53cd6c53
10.1002/anie.202011902
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