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Synthesis of NIPU by the carbonation of canola oil using highly efficient 5,10,15‐tris(pentafluorophenyl)corrolato‐manganese(III) complex as novel catalyst
Author(s) -
Malik Manjeet,
Kaur Raminder
Publication year - 2018
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.4219
Subject(s) - isocyanate , catalysis , manganese , curing (chemistry) , materials science , polyurethane , fourier transform infrared spectroscopy , polymer chemistry , silanol , diethanolamine , organic chemistry , chemistry , chemical engineering , engineering
For the green synthesis of polyurethane (PU), non‐isocyanate routes are worthy alternatives. In the present work, we have explored 5,10,15‐tris(pentafluorophenyl)corrolato‐manganese(III) complex as novel catalyst for coupling reaction between epoxidized canola oil and CO 2 (gaseous) to introduce cyclic carbonate moieties in the oil and further used it to obtain non‐isocyanate PU, generally abbreviated as NIPU, by curing with different diamines. The results obtained indicated a 1/4th of the reduction in reaction time with the use of 5,10,15‐tris(pentafluorophenyl)corrolato‐manganese(III) complex as catalyst as compared to the previously reported literature data. As per the reported studies, the corrole metal complex has not been used for this reaction earlier. The structure of products and intermediates were confirmed by using different characterization techniques like 1 H NMR and FTIR spectroscopies. The thermal and mechanical behavior of final product was analyzed by TGA and universal testing machine, respectively. The non‐isocyanate PU obtained showed a good thermal stability up to 200°C and a tensile strength of up to 8 MPa. The effect of structure of diamines on the properties of non‐isocyanate PU was also extensively studied.