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Publikācija: Rapeseed Oil as Renewable Resource for Polyol Synthesis

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Nosaukums oriģinālvalodā Rapeseed Oil as Renewable Resource for Polyol Synthesis
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.7. Vides inženierija un enerģētika
Autori Uldis Stirna
Anda Fridrihsone
Marija Misane
Dzintra Vilsone
Atslēgas vārdi amidization, esterification, NH value determination, polyols, rapeseed oil, renewable resources, and vegetable oil
Anotācija Vegetable oils are one of the most important platform chemicals due to their accessibility, specific structure of oils and low price. Rapeseed oil (RO) polyols were prepared by amidization of RO with diethanolamine (DEA). To determine the kinetics of amidization reaction, experiments were carried out. Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), amine (NH) value was determined. Group contribution method by Fedor`s was used to calculate solubility parameters, van der Waals volume was calculated by Askadskii. Obtained polyol`s OH and NH value are from 304 up to 415 mg KOH/g. RO polyols synthesis meets the criteria of “green chemistry”. In the present study, reaction of RO amidization with DEA was investigated, as well as optimum conditions for polyol synthesis was established to obtain polyols for polyurethane production. Calculations of solubility parameter and cohesion energy density were calculated, as RO polyols will be used as side chains in polymers, and solubility parameter will be used to explain properties of polymers.
Atsauce Stirna, U., Fridrihsone-Girone, A., Misane, M., Vilsone, D. Rapeseed Oil as Renewable Resource for Polyol Synthesis. Environmental and Climate Technologies. Nr.6, 2011, 85.-90.lpp. ISSN 1691-5208.
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