Vegetable oil polyol with suspension chain removed and preparation method and application thereof
A vegetable polyol preparation method comprises of the following steps: [i] reacting vegetable oil with ethylene and a Grubbs Catalyst 2nd Generation in a reaction kettle to obtain vegetable oil with a suspension chain removed, [ii] reacting the vegetable oil obtained in step [i] with N-bromosuccini...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A vegetable polyol preparation method comprises of the following steps: [i] reacting vegetable oil with ethylene and a Grubbs Catalyst 2nd Generation in a reaction kettle to obtain vegetable oil with a suspension chain removed, [ii] reacting the vegetable oil obtained in step [i] with N-bromosuccinimide and dimethyl sulfoxide in the reaction kettle to obtain a product (a); [iii] reacting the product (a) obtained in step [ii] with diethyl ether and 1,8-diazabicyclo[5.4.0]undec-7-ene in the reaction kettle to obtain a product (b); [iv] using the product (b) obtained in step [iii] as an ingredient I, using a mixed solution of aldehyde and toluene as an ingredient II, respectively and simultaneously pumping the ingredient I and the ingredient II into a first micromixer of a micro channel modular reaction device for mixing, and pumping the mixture into a first microreactor for a reaction after mixing to obtain a vegetable oil polyol (c); and [v] carrying out a hydrogenation reaction on the vegetable oil polyol (c) obtained in step [iv] with a Pd/C catalyst and hydrogen in the reaction kettle to obtain the vegetable oil polyol with the suspension chain removed. Also disclosed is a vegetable oil polyol prepared using the said method; use of the vegetable oil polyol in a polyurethane elastomer and a polyurethane coating. |
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