Highly Soluble Alkaline Stable Surfactants - Physical Properties

Tuesday, April 30, 2024

2:09 PM – 2:26 PM EDT

Room: 520e

Presenting Author(s)

Eric Rick Theiner, MS (he/him/his)

Technical Applications Development Manager
Evonik Corporation
Midlothian, Virginia, United States

Co-Author(s)

RB

Rachel Barbieri

Chemist
Evonik Corporation, United States
iG

isaac Garrett

Chemist
Evonik Corporation, United States

Abstract: The examination of amphoteric coupling agents through the use of coarse-grained modeling indicated that small hydrophobes in relation to the hydrophilic groups on polypropionate surfactants could provide benefits in very alkaline ( >10% Na₂O) solutions. Synthesis of cyclohexylamine dipropionic acid and similar materials showed that high alkaline solubility and stability can be attained while presenting surfactancy under the right conditions (as presented at the 2023 AOCS Annual Meeting).

Continuing to work with these materials reveals that characteristics such as critical micelle concentration can be tuned within constraints of the materials themselves. This work shows how the physical properties vary as a result of alkalinity and ionic strength.