TY - JOUR
T1 - Poly(urethane–carbonate)s from Carbon Dioxide
AU - Chen, Zuliang
AU - Hadjichristidis, Nikos
AU - Feng, Xiaoshuang
AU - Gnanou, Yves
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): BAS/1/1374-01-01
Acknowledgements: This research work is supported by KAUST under baseline funding (BAS/1/1374-01-01).
PY - 2017/3/9
Y1 - 2017/3/9
N2 - A one-pot, two-step protocol for the direct synthesis of polyurethanes containing few carbonate linkages through polycondensation of diamines, dihalides, and CO2 in the presence of Cs2CO3 and tetrabutylammonium bromide is described. The conditions were optimized by studying the polycondensation of CO2 with 1,6-hexanediamine and 1,4-dibromobutane as model monomers. Then, various diamines and dihalides were tested under optimal conditions. Miscellaneous samples of such carbonate-containing polyurethanes exhibiting molar masses from 6000 to 22 000 g/mol (GPC) and yields higher than 85% were obtained. The thermal properties of such polyurethanes were unveiled by differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA): they were found very similar to those of traditional polyurethanes obtained by diisocyanates + diols polycondensation.
AB - A one-pot, two-step protocol for the direct synthesis of polyurethanes containing few carbonate linkages through polycondensation of diamines, dihalides, and CO2 in the presence of Cs2CO3 and tetrabutylammonium bromide is described. The conditions were optimized by studying the polycondensation of CO2 with 1,6-hexanediamine and 1,4-dibromobutane as model monomers. Then, various diamines and dihalides were tested under optimal conditions. Miscellaneous samples of such carbonate-containing polyurethanes exhibiting molar masses from 6000 to 22 000 g/mol (GPC) and yields higher than 85% were obtained. The thermal properties of such polyurethanes were unveiled by differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA): they were found very similar to those of traditional polyurethanes obtained by diisocyanates + diols polycondensation.
UR - http://hdl.handle.net/10754/623025
UR - http://pubs.acs.org/doi/full/10.1021/acs.macromol.7b00142
UR - http://www.scopus.com/inward/record.url?scp=85016331311&partnerID=8YFLogxK
U2 - 10.1021/acs.macromol.7b00142
DO - 10.1021/acs.macromol.7b00142
M3 - Article
SN - 0024-9297
VL - 50
SP - 2320
EP - 2328
JO - Macromolecules
JF - Macromolecules
IS - 6
ER -