Synthesis and properties of a glucono-δ-lactone-modified silicone surfactant from high-amine-value amodimethicone

Abstract

High-amine-value aminopropyl polysiloxanes (APSO) were designed and synthesized via two different methods. APSO was then aminated with glucono-δ-lactone (GL) to produce sugar-modified amodimethicone (GLAP). The properties of GLAP were investigated systematically. GLAP has a low critical aggregation concentration (CAC) and displays low surface tensions at CAC (γ_CAC). GLAP forms spherical aggregates in solution. Formation of micelles and adsorption at the air-water interface are spontaneous. Moreover, its good solubility and excellent wetting properties make GLAP a potential candidate for application in paints, coatings, and agricultural adjuvants.

Graphical Abstract

Keywords:

• Aminopropyl polysiloxanes
• sugar-modified amodimethicone
• spherical aggregates
• wetting properties

Additional information

Funding

The authors of this paper are grateful for financial support by the National Key R & D Plan (Grant NO. 2017YFB0308704) and the National Natural Science Found of China (21872088). We are also grateful for sponsorship from the JALA Research Found Projects (JILA 2017).