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US 10,703,845 B2Granted
Preparation of maleate and maleimide monomers and polymeric materials from triglycerides
AssigneeUniversity of South Carolina
InventorsChuanbing Tang, Liang Yuan, Meghan Lamm
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Abstract
Monomer compounds and methods of synthesizing monomer compounds are disclosed. The monomer compounds can include maleate and maleimide monomers having fatty acid moieties. The monomer compounds can be derived from renewable sources such as corn, soybean, and sunflower oils. The monomer compounds can be formed into homopolymers as well as copolymers. The copolymers can include petroleum-derived monomers such as styrene, ethylene, and propylene.
Claims12
A monomeric compound comprising:
- wherein n is 1, 2, 3, or 4,
- wherein R1 is hydrogen, a methyl group, an ethyl group, a propyl group, or a butyl group,
- and wherein R2 is an aliphatic chain from a fatty acid.
A method for synthesizing an N-substituted maleimide monomer comprising:
- converting a triglyceride to a fatty acid chain having a primary amine group using a base-catalyzed transesterification;
- and
- producing the N-substituted maleimide monomer by dehydration-cyclization conversion of the fatty acid chain having the primary amine group, wherein the N-substituted maleimide monomer has the following structure:
- wherein n is 1, 2, 3, or 4,
- wherein R1 is hydrogen, a methyl group, an ethyl group, a propyl group, or a butyl group,
- and wherein R2 is an aliphatic chain from a fatty acid.
3 more elements
Dependencies are inferred from the claim text.