Natural oil based highly functional polyols as feedstock for rigid polyurethane foam thermal insulation

0490734 - ÚMCH 2019 RIV NL eng J - Journal Article
Kirpluks, M. - Kalnbunde, D. - Beneš, Hynek - Cabulis, U.
Natural oil based highly functional polyols as feedstock for rigid polyurethane foam thermal insulation.
Industrial Crops and Products. Roč. 122, 15 October (2018), s. 627-636. ISSN 0926-6690. E-ISSN 1872-633X
Institutional support: RVO:61389013
Keywords : natural oil * polyols * rigid polyurethane (PU) foams
OECD category: Polymer science
Impact factor: 4.191, year: 2018

High functional polyols were obtained from natural oil feedstock available in Northern Europe via a modification of established polyol synthesis method from epoxidized vegetable oil. Epoxy ring opening and subsequent transesterification of the glycerol backbone with different polyfunctional alcohols, such as diethylene glycol, triethanolamine and diethanolamine , were used to obtain polyols with high reactivity and high functionality. Chemical structure of obtained polyols was studied by Fourier transform infrared spectroscopy, gel permeation chromatography and the matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry. From gel permeation chromatography data average molecular weight, the weight average molecular weight, polydispersity index and average functionality (fn) of polyols were determined.
Permanent Link: http://hdl.handle.net/11104/0284931