Permselective membranes made by grafting thin films of polyester and silicone. Homogeneous graft membranes. Inert and active porous membranes

Technical Report · Wed Mar 07 04:00:00 EST 1973

OSTI ID:4934007

Marchand, J

From meeting on the development of industrial applications of radiation chemistry; Paris, France (13 Mar 1973). Different structured membranes were obtained. Gamma radiation is used to implant the packets of polyelectrolytes in the texture of a crystalline polyester film or in the bulk of a porous silicone elastomer. Heavy ionizing particles are used to obtain a porous material with cylindrical shaped pores having diameters determined by the chemical development conditions. In this last case, the utilization of the species created by the passage of the particles to fix the polyelectrolyte results in its distribution in the walls of the pores after it has produced the porosity. The first ion exchange membranes exhibited interesting properties for small thicknesses. The second ion exchange membranes, which are porous particularly when the pores are coated with a polyelectrolyte, suggest applications in separation using fine filtration or ultrafiltration. (FR)

• Research Organization: CEA Centre d'Etudes Nucleaires de Saclay, 91 - Gif-sur-Yvette (France). Centre d'Application et de Promotion des Rayonnements Ionisants
• Sponsoring Organization: Sponsor not identified
• NSA Number: NSA-29-004884
• OSTI ID: 4934007
• Report Number(s): CEA-CONF--2325; CONF-730343--3
• Country of Publication: France
• Language: French

Related Subjects

ACRYLIC ACID
CHEMICAL RADIATION EFFECTS
ELASTOMERS
FILMS
GAMMA RADIATION
GRAFT POLYMERS
ION EXCHANGE MATERIALS
MEMBRANES FILTRATION
N40300* --Chemistry--Radiation Chemistry
POLYESTERS
POLYVINYLS
POROSITY
PYRIDINES
SILICONES