ENHANCED POLYMER-FILLER INTERACTION IN MIXED MATRIX MEMBRANES

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GHADIMZADEHALAMDARI M.; NEMATOLLAHZADEH A.; AMIRI M.; YEGANI R.

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Seminar Paper

Paper Information

Seminar: IRANIAN SEMINAR OF ORGANIC CHEMISTRY
Year:2014 | Issue:22

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Title

ENHANCED POLYMER-FILLER INTERACTION IN MIXED MATRIX MEMBRANES

Author(s)

GHADIMZADEHALAMDARI M. | NEMATOLLAHZADEH A. | AMIRI M. | YEGANI R. | Issue Writer Certificate

Keywords

FILLERS

BULK AND SURFACE TREATMENT

POLYMER MEMBRANES

Abstract

POLYMERIC MEMBRANES, DESPITE MANY ADVANTAGES, ARE SUFFERING FROM POOR WETTABILITY, THERMAL AND MECHANICAL INSTABILITY, SOLVENT RESISTANCE, ETC. THE DEFICIENCIES RESTRICT THE MEMBRANES APPLICATIONS IN MOST OFSEPARATION PROCESSES. SO FAR, SEVERAL METHODS HAVE BEEN PROPOSED TO CIRCUMVENT THE AFOREMENTIONEDDEFICIENCIES ACCORDING TO THE DESIRED PURPOSES.IN GENERAL, NANOMATERIALS CAN BE INCORPORATED INTO/ONTO A POLYMERIC MEMBRANES BY BLENDING WITH THE DOPE SOLUTION OR BY ATTACHING THEM TO OUTERMOST SURFACE OF THE MEMBRANE SURFACES VIA PHYSICAL OR CHEMICAL APPROACHES [1]. SURFACE TREATMENT OF MEMBRANES CAN BE PERFORMED BY PLASMA TREATMENT, SELF-ASSEMBLY OF ORGANIC OR INORGANIC COMPOUNDS, GRAFT POLYMERIZATION AND FILLERS ADDITION. INCORPORATION OF THE SECONDARY COMPOUND INTO/ONTO POLYMER MEMBRANECAN ENHANCE, FOR EXAMPLE, THE WETTABILITY, PERMEATION FLUX AND MECHANICAL STABILITY AND CONSEQUENTLY CAN CONFER DIFFERENT TRAITS TO THE MEMBRANE. THE RECENT EMERGENCE OF COLLOIDAL PARTICLES WITH NANOSIZED PORES HAS INITIATED NEW INVESTIGATIONS WITH A NUMBER OF NOTABLE ADVANCEMENTS [2]. ADDITION OF NANOPARTICLES ACCORDING TO THEIR INHERENT CHARACTERISTICS AND CONTENT OF FILLERS MIGHT IMPROVE THE POLYMERS’ CRUCIAL PROPERTIES SUCH AS TENSILE MODULUS, STRENGTH, STIFFNESS, ELECTRICAL CONDUCTIVITY, DIELECTRIC COEFFICIENT, SOLVENT AND HEAT RESISTANCE, WETTABILITY ETC. [3]. IF THE POLYMER MATRIX LACKS SUFFICIENT COMPATIBILITY WITH THE NANOPARTICLES, MIXING SHEAR STRESS ALONE CANNOT RESULT IN HOMOGENOUS DISPERSION OF THE NANOPARTICLES. THEREFORE, DEPENDING ON THE MATRIX–FILLER COMBINATION, THEIR COMPATIBILITY HAS TO BE ENHANCED BY THE SURFACE FUNCTIONALIZATION OF THE FILLERS WITH ORGANIC SURFACTANTS OR OTHER CHEMICAL AGENTS [3]. THIS STUDY INVESTIGATES THE EFFECTS OF SILICA SURFACE MODIFICATION WITH DIFFERENT CHEMICAL MOIETIES, AND THE EFFECT OF THE SURFACE FUNCTIONALITY ON THE BULK MODIFIED MEMBRANES PHYSICOCHEMICAL PROPERTIES.

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APA: Copy

GHADIMZADEHALAMDARI, M., NEMATOLLAHZADEH, A., AMIRI, M., & YEGANI, R.. (2014). ENHANCED POLYMER-FILLER INTERACTION IN MIXED MATRIX MEMBRANES. IRANIAN SEMINAR OF ORGANIC CHEMISTRY. SID. https://sid.ir/paper/913054/en

Vancouver: Copy

GHADIMZADEHALAMDARI M., NEMATOLLAHZADEH A., AMIRI M., YEGANI R.. ENHANCED POLYMER-FILLER INTERACTION IN MIXED MATRIX MEMBRANES. 2014. Available from: https://sid.ir/paper/913054/en

IEEE: Copy

M. GHADIMZADEHALAMDARI, A. NEMATOLLAHZADEH, M. AMIRI, and R. YEGANI, “ENHANCED POLYMER-FILLER INTERACTION IN MIXED MATRIX MEMBRANES,” presented at the IRANIAN SEMINAR OF ORGANIC CHEMISTRY. 2014, [Online]. Available: https://sid.ir/paper/913054/en

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