Chemo-enzymatic synthesis of oil polyols and polyurethanes of them

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46504711%3A_____%2F09%3A%230000275" target="_blank" >RIV/46504711:_____/09:#0000275 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Chemo-enzymatic synthesis of oil polyols and polyurethanes of them
Original language description
In this work we have studied possibility to apply chemo-enzymatic catalysis for preparation of new types of oil polyols. Starting raw materials were methylesters of hydroxyfunctionalized fatty acids derived from castor oil, hydroformylated soybean oil, and epoxidized soybean oil ring opened with low molecular weight (poly)alcohols. Reacting these fatty acids with green growing centers such as 1.3-propanediol or glycerol we were able to synthesize 100 % renewable content polyols differing in molecular weight, and hydroxyl group?s functionality. We catalyzed the condensation reactions with up to 5 wt. % of immobilized Candida antarctica lipase B (Novozym 435). Setting up the reaction temperature to 70 °C and applying low pressure we allowed easy removalof a side product, methanol. Curing the synthesized oil polyols with aliphatic and aromatic type of isocyanate we prepared model polyurethane cast resins and evaluated physical-mechanical properties of these materials. We will discuss res
Czech name
—
Czech description
—

Project
<a href="/en/project/2A-2TP1%2F135" target="_blank" >2A-2TP1/135: *Novel polyfunctional hybrid polymers from renewable and recyclable raw materials with potential utilization of enzyme catalysts and nanoparticles.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)