POS1-0698
Scalable Synthesis of CO2-Derived Bis-Cyclic Carbonates for Sustainable Non-Isocyanate Polyurethane (NIPU)
When and Where
Nov 30, -0001
12:00am - 12:00am
Presenter(s)
Bang Daewon (Korea Research Institute of Chemical Technology (KRICT))
Co-Author(s)
Abstract
Non-isocyanate polyurethanes (NIPUs) can be an eco-friendly alternative to conventional isocyanate-based systems.
In this study, we reports the scalable synthesis of poly(propylene glycol) bis 5-membered cyclic carbonate (PPGDCC) from poly(propylene glycol) diglycidyl ether (PPGDGE) and carbon dioxide (CO2) for NIPU system, utilizing a zinc complex catalyst.
To overcome the limitations of conventional high temperature and pressure synthesis, we developed an ambient-pressure process, successfully synthesizing PPGDCC from 500 g to 7.5 kg by using a double jacketed reactor.
Furthermore, we systematically optimized the key reaction variables, including reaction temperature, process sequence, and content of catalyst.
Notably, we observed a strong correlation between CO2 flow rates and PPGDCC conversion, establishing a reliable pathway from lab scale to pilot scale production.
The resulting PPGDCC was subsequently converted into NIPU via aminolysis.
By precisely adjusting the amine stoichiometry, we successfully tuned the cross-linking density of the polymer network.
This versatile approach yields materials with excellent properties, particularly for high-performance adhesive film applications.
Our findings demonstrate a sustainable recycling strategy of resource for the synthesis of advanced chemical materials using greenhouse gas.
In this study, we reports the scalable synthesis of poly(propylene glycol) bis 5-membered cyclic carbonate (PPGDCC) from poly(propylene glycol) diglycidyl ether (PPGDGE) and carbon dioxide (CO2) for NIPU system, utilizing a zinc complex catalyst.
To overcome the limitations of conventional high temperature and pressure synthesis, we developed an ambient-pressure process, successfully synthesizing PPGDCC from 500 g to 7.5 kg by using a double jacketed reactor.
Furthermore, we systematically optimized the key reaction variables, including reaction temperature, process sequence, and content of catalyst.
Notably, we observed a strong correlation between CO2 flow rates and PPGDCC conversion, establishing a reliable pathway from lab scale to pilot scale production.
The resulting PPGDCC was subsequently converted into NIPU via aminolysis.
By precisely adjusting the amine stoichiometry, we successfully tuned the cross-linking density of the polymer network.
This versatile approach yields materials with excellent properties, particularly for high-performance adhesive film applications.
Our findings demonstrate a sustainable recycling strategy of resource for the synthesis of advanced chemical materials using greenhouse gas.
