Advanced Methods for Hydroxylation of Vegetable Oils, Unsaturated Fatty Acids and Their Alkyl Esters

Vegetable oils and their derivatives have great potential as renewable and sustainable raw materials for the production of polyurethanes and bio-based polyols. For industry an important process is their modification. Chemical reactions that are carried out on vegetable oils and their derivatives are...

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Bibliographic Details
Published in:Coatings (Basel) 2022-01, Vol.12 (1), p.13
Main Authors: Musik, Marlena, Bartkowiak, Marcin, Milchert, Eugeniusz
Format: Article
Language:English
Subjects:
Alcohols
Carbonyls
Carboxylic acids
Chemical reactions
Epoxidation
Esters
Ethylene oxide
Fatty acids
Hydrogen peroxide
Hydrogenation
Hydroxyl groups
Hydroxylation
Oxidation
Peracids
Polymerization
Polyols
Polyurethane
Raw materials
Reagents
Soybeans
Transesterification
Triglycerides
Vegetable oils
Viscosity
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Summary:Vegetable oils and their derivatives have great potential as renewable and sustainable raw materials for the production of polyurethanes and bio-based polyols. For industry an important process is their modification. Chemical reactions that are carried out on vegetable oils and their derivatives are: transesterification, auto-oxidation, hydrogenation, epoxidation, hydroxylation, acrylation, isocyanation and others. One of the modifications are reactions performed on double bonds and/or carbonyl moieties of plants oils and their derivatives. These reactions result in products that are actively used as binders in coating materials due to their unique structural properties. In this manuscript, we describe important technological methods for the introduction of hydroxyl groups: opening of oxirane rings by nucleophilic reagents such as: water, alcohols, glycols, amino alcohols, carboxylic acids; direct hydroxylation of unsaturated bonds with carboxylic peracids in combination with hydrolysis of carboxyl groups and hydration; hydroformylation of unsaturated bonds with subsequent hydrogenation and alkoxylation; and ozonolysis of unsaturated bonds in combination with subsequent hydrogenation and alkoxylation.
ISSN:2079-6412
2079-6412
DOI:10.3390/coatings12010013