RT info:eu-repo/semantics/conferenceObject
T1 Catalytic copolymerization reaction of CO2 and propylene oxide over polyalcohols under subcritical conditions
A1 Pinilla de Dios, María
A1 Andrés Iglesias, Cristina
A1 Fernández, Adrian
A1 Salmi, Tapio
A1 Galdámez Peña, José Román
A1 García Serna, Juan
AB CO2 can be used in copolymerization reactions as a C1 feedstock. Propylene oxide is a perfect candidate for such reaction. Through the mechanism of Ring Opening Polymerization, CO2 can be inserted into the polymer chain. Zinc glutarate (ZnGA) and Zn-Co double metal cyanide (DMC) have been studied as active heterogeneous catalysts for the study. An exhaustive characterization of these catalysts (prepared and used under different conditions) in copolymerization reactions. Catalysts were analyzed by different techniques such as Fourier transform infrared spectroscopy (FTIR and FTIR with pyridine), Inductively coupled plasma optical emission spectrometry, Light scattering, Scanning Electron Microscopy and Energy-dispersive X-ray spectroscopy, N2-physisorption, X-ray photoelectron spectroscopy, X-ray powder diffraction and Thermogravimetric analysis-mass spectrometry. A number of reaction conditions have been tested, demonstrating the effect of pressure, temperature, amount of catalyst, catalyst deactivation and catalyst preparation. The obtained copolymers were analyzed by infrared spectrometry and gel permeation chromatography. High active DMC catalyst (2.5 kg polymer/g catalyst) could be synthetized obtaining 0.4 % of the byproduct cyclic carbonate. This reaction can be the base of a future chemistry to obtain polymers based in bio-alcohols.
YR 2016
FD 2016
LK http://uvadoc.uva.es/handle/10324/23484
UL http://uvadoc.uva.es/handle/10324/23484
LA spa
DS UVaDOC
RD 17-jul-2024