Efficient and Versatile Flow Synthesis of New Nonionic Glucamide Surfactants

Area of Science:

• * Chemistry
• * Materials Science
• * Industrial Chemistry

Background:

• * Surfactants are essential in numerous industries, serving as detergents, emulsifiers, dispersants, wetting, foaming, and flotation agents.
• * N-acyl-N-alkyl-d-glucamides are a class of nonionic surfactants synthesized from abundant, natural resources.
• * These surfactants offer a wide range of hydrophilic-lipophilic balance (HLB) values, tunable via alkyl chain length, enabling customized properties.

Purpose of the Study:

• * To synthesize novel N-acyl-N-alkyl-d-glucamides using an efficient flow-batch methodology.
• * To evaluate the interfacial properties, including surface and interfacial tensions, of selected glucamide-based surfactants.
• * To explore the potential of these versatile surfactants for diverse industrial applications.

Main Methods:

• * Preparation of six N-acyl-N-alkyl-d-glucamides utilizing immobilized scavengers and reagents.
• * Employing a flow-batch synthesis mode for efficient production.
• * Measurement of surface and interfacial tensions for two representative glucamide surfactants.

Main Results:

• * Successful synthesis of six distinct N-acyl-N-alkyl-d-glucamides.
• * Characterization of the interfacial properties of the synthesized surfactants.
• * Demonstrated versatility and tunability of glucamide surfactants based on alkyl chain length.

Conclusions:

• * N-acyl-N-alkyl-d-glucamides can be efficiently synthesized using flow-batch techniques with immobilized reagents.
• * The tunable HLB values and demonstrated interfacial activity highlight their potential as industrial surfactants.
• * These natural resource-derived surfactants offer a sustainable and customizable alternative for various applications.