Modification of Poly(Ethylene Terephthalate) Track Membrane Properties by Plasma Chemical Method

2010 ◽  
Vol 636-637 ◽  
pp. 805-811 ◽  
Author(s):  
L. Kravets ◽  
S. Dmitriev ◽  
G. Dinescu ◽  
V. Sleptsov ◽  
V. Elinson
Keyword(s):  
Plasma Treatment ◽  
Allyl Alcohol ◽  
Chemical Method ◽  
Ethylene Terephthalate ◽  
Track Membrane ◽  
Membrane Properties ◽  
Plasma Chemical ◽  
Treatment Conditions ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

Properties of poly(ethylene terephthalate) track membrane (PET TM) exposed to an allyl alcohol radiofrequency plasma after pre-activation its surface in an oxygen plasma were studied. The influence of plasma treatment conditions on basic membrane characteristics, i.e. pore size and shape, wettability, and water permeability, was studied. It has been shown that the plasma treatment of membrane can significantly improve its performance characteristics.

Polymer Composite Nanomembranes with Asymmetry of Conductivity

2010 ◽  
Vol 636-637 ◽  
pp. 812-818 ◽  
Author(s):  
L. Kravets ◽  
S. Dmitriev ◽  
G. Dinescu ◽  
V. Satulu ◽  
A. Gilman ◽  
...  
Keyword(s):  
Plasma Polymerization ◽  
Ethylene Terephthalate ◽  
Membrane Surface ◽  
Electrolyte Solutions ◽  
Track Membrane ◽  
Pore Geometry ◽  
Rectification Effect ◽  
Biochemical Sensors ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene

This paper describes a structure and electrotransport properties of poly(ethylene terephthalate) track membrane (PET TM) modified by plasma of thiophene. It is shown that the deposition of the polymer on the track membrane surface by plasma polymerization of thiophene in case of forming a semipermeable layer results in creation of composite nanomembrane having in electrolyte solutions of asymmetry of conductivity - a rectification effect. It is caused by presence in the membrane of two layers with various functional groups, and also by changing of the pore geometry. Such type membranes can be used for creation of chemical and biochemical sensors.

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