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Porous double-layer polymer tubing for the potential use in heterogeneous continuous flow reactions
Gordon Herwig1, Christian H Hornung, Gary Peeters
1Manufacturing Flagship, CSIRO , Bag 10, Clayton South, Victoria 3169, Australia.
ACS Applied Materials & Interfaces
|November 25, 2014
Summary
Researchers developed functional polymer tubing using coextrusion. This porous tubing allows for easy molecule immobilization, enabling applications in microfluidics and beyond.
Area of Science:
- Polymer Science
- Materials Science
- Chemical Engineering
Background:
- Development of functional materials for molecular immobilization is crucial for advanced applications.
- Existing methods for creating functional tubing can be complex or limited in scope.
Purpose of the Study:
- To fabricate functional polymer tubing with a porous inner layer for molecule immobilization.
- To demonstrate the versatility of the tubing for attaching various molecules.
Main Methods:
- Utilized a simple polymer coextrusion process to create multilayered tubing.
- Employed a solvent leaching technique to generate a porous inner layer.
- Performed solution-phase reactions to immobilize small molecules and polymers onto the functional groups.
Main Results:
- Successfully fabricated functional polymer tubing with outer polypropylene and inner polyethylene-co-methacrylic acid layers.
- Created a porous inner layer by removing a sacrificial polystyrene component.
- Demonstrated successful immobilization of small molecules and polymers via carboxylic acid groups.
Conclusions:
- The developed functional tubing offers a versatile and accessible platform for molecular immobilization.
- The fabrication method is simple and scalable, suitable for microfluidic applications.
- The tubing can be customized for length and integrated with standard fittings.

