University of Montana

Kylie Kramer

Donald E Kiely

Jinsong Zhang

A method of producing high molecular weight stereoregular head, tail-poly(alkylene D-glucaramides) is described. Amidoamino acids are esterified in cold alcohol and then polymerized in a protic solvent to form steroregular prepolymers. The prepolymers are then further polymerized by dissolving them in a solvent to form larger, purer postpolymers. Compositions of matter prepared using the subject method are also described.

High molecular weight stereoregular head-tail poly(glucaramides)

High molecular weight random polyhydroxypolyamides (PHPAs) are produced by creating prepolymers which are further polymerized. Random prepolymers are formed from a stoichiometrically molar balance (1:1) starting material. The starting material is a 1:1 stoichiometrically balanced esterified aldaric acid:alkylene or alkylene derived diammonium salt. Alternatively, the starting material is an esterified stoichiometrically balanced diacid:diamine salt and a N'-ammoniumalkyl (or alkyl derived)-D-aldaramic acid terminal carboxylate zwitterionic salt mixture. The starting materials are polymerized in a basic alcohol using a second amine. The polymerized material, or the random prepolymers, are isolated and then further polymerized in a solvent, typically a mixed solvent of an alcohol and non-alcohol, to obtain the high molecular weight PHPAs.

Growing community of inventors

Missoula, MT, United States of America

Kylie Kramer