Amino acid surfactants
AssigneeAdvanSix Resins & Chemicals LLC
InventorsEdward Asirvatham, Andrei Honciuc, Voichita Mihali
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Abstract
The present disclosure provides derivatives of amino acids that have surface-active properties. The amino acid can be naturally-occurring or synthetic, or they may be obtained via a ring-opening reaction of a lactam, such as caprolactam. The amino acid may be functionalized to form a compound that is surface-active and have advantageous surfactant characteristics. The compounds of the present disclosure have low critical micelle concentrations (CMC) as well as superior ability to lower the surface tension of a liquid.
Claims13
A compound of the following formula:
- wherein X is an anion chosen from chloride, bromide, and iodide.
A method of synthesizing an amino acid surfactant, comprising the steps of:
- (1) opening a lactam to yield an amino acid having a C-terminus and an N-terminus;
- (2) reacting the C-terminus with an alcohol under acidic conditions to yield an amino acid ester having an N-terminus;
- and
- (3) reacting the N-terminus of the amino acid ester with an acid to yield an amino acid surfactant of the following formula:
- wherein X is an anion chosen from chloride, bromide, and iodide.
A liquid composition comprising:
- a medium;
- and
- a surfactant of the following formula:
- wherein X is an anion chosen from chloride, bromide, and iodide.
Dependencies are inferred from the claim text.