Technology Offers

Multifunctional and Universally Applicable "Intelligent" Surfactants

Abstract

Biodegradable, surface-active surfactants for compatibilizing more than two phases

Background

Surface-active substances, i.e. surfactants, are washing-active substances (“detergents”) that can form foam, facilitate the removal of dirt and enable water and oil to mix. Surfactants are therefore found in really every household, but also have numerous industrial applications.

The total global surfactants market size was approximately $44 billion in 2019 and is expected to reach approximately $60 billion by 2025, growing at a CAGR of approximately 5%.

Problem

Common surfactants usually consist of a polar and a non-polar structural unit. For more demanding tasks, such as the stabilization of charged particles, e.g. mineral nanoparticles, in an aqueous and organic medium, mixtures of surfactants have so far been required to exhibit the required solution properties in combination. Such mixtures have to be formulated in a technically complex way for each specific application. This is a considerable development effort with correspondingly high development and production costs. Due to the often different storage requirements of the respective surfactants in such mixtures, their logistics are demanding. In addition, undesirable interactions between the different surfactants are possible.

Solution

The multifunctional “smart” surfactants are comb polymers, which have at least three structural units that can be varied. The polyelectrolyte main chain A forms the backbone of the comb polymer and has at least partially charged structural units. Due to the corresponding charges of the polyelectrolyte chain, charged particles such as mineral nanoparticles can be bound. Different side chains on the polymer backbone add further functions (e.g. polar, non-polar, fluorophilic, complexing, etc.) and allow to stabilize a variety of different phases. This structure gives the comb polymer the ability to combine different functions in one molecule, to recognize the chemical environment and to fold in such a way that the corresponding structural units of the comb polymer dissolve in the respective phases and combine with them. This “intelligent” behavior allows broad use in a wide variety of systems without requiring individual optimization of the surfactant or even a surfactant mixture.

Advantages

  • Compatibility of more than two phases in particular
  • Universally applicable
  • Can be designed to be biodegradable
  • No formulation/individual optimization required
  • No mixtures of surfactants required
  • Polyelectrolyte character (charge) of the main chain is variable
  • Type and number of side chains and thus functionality can be varied
  • Comparatively simple synthesis
  • No auxiliaries required

Fields of Application

Exposé
Contact
Dr. Frank Schlotter
TLB GmbH
Ettlinger Straße 25
76137 Karlsruhe | Germany
Phone +49 721-79004-0
schlotter(at)tlb.de | www.tlb.de
Development Status
TRL 3
Patent Situation
DE 102021114054 pending
Reference ID
21/024TLB
Service
Technologie-Lizenz-Büro GmbH is responsible for the exploitation of this technology. It offers companies the possibility of cooperation and assists them in obtaining licenses.