ORGANIC–INORGANIC HYBRID MATERIALS HAVE MANY APPLICATIONS IN VARIOUS FIELDS INCLUDING NANO MATERIALS, OPTOELECTRONIC DEVICES, ELECTROCHEMICAL SENSORS, DRUG CARRIERS AND FUNCTIONAL QUANTUM DOT MATERIALS [1]. TECHNIQUES USED TO ATTACH POLYMER CHAINS ONTO THE SURFACES OF INORGANIC NANOPARTICLES, INCLUDING CHEMISORPTION, COVALENT ATTACHMENT OF END-FUNCTIONALIZED POLYMERS TO A REACTIVE SURFACE, GRAFTING-TO AND GRAFTING-FROM METHODS AND IN SITU POLYMERIZATION WITH MONOMER FROM IMMOBILIZED INITIATORS. AMONG THESE, GRAFTING-FROM CONTAINS THE INTRODUCTION OF ONE OR TWO INITIATORS SUCH ASAZO-, PEROXIDE-, PHOTOINITIATORS OR LIVING FREE RADICALS AT THE SURFACE OF NANOPARTICLES [2]. HOMOGENOUS DISPERSION OF NANOPARTICLES IS AN IMPORTANT FACTOR TO HAVE A MATRIX WITH HOMOGENOUS PROPERTIES. ONE OF THE METHODS TO STABILIZE FILLERS TO PREVENT AGGREGATION IS GRAFTING LONG POLYMER CHAINS TO CONTROL PARTICLES AGGREGATION [3]. HYDROPHILIC SILICA NANOPARTICLES CONTAINING HYDROXYL GROUPS HAVE A STRONG POTENTIAL TO AGGLOMERATE DUE TO INCONSISTENCY WITH THE MATRIX RESULTING IN MIGRATION OF PARTICLES TO THE SURFACE OF SUCH COMPOSITES [3]. FUNCTIONAL GROUPS ON THE SURFACE OF SILICA NANOPARTICLES CAN BE TAILORED WITH ORGANIC COMPOUNDS OR POLYMERS WITH CHEMICAL OR PHYSICAL METHOD [3]. BY SURFACE MODIFICATION OF SILICA NANOPARTICLES, THE ADHESIVE FORCES BETWEEN ORGANIC PHASE AND INORGANIC PHASE ARE ENHANCED. THEREFORE, DUE TO INCREASED COMPATIBILITY OF THE MODIFIED SILICA PARTICLES AND ORGANIC MATRIX, AN ORGANIC MATRIX WITH WELL DISPERSED INORGANIC PARTICLES COULD BE ACHIEVED [1]. IN THIS WORK, WE WILL THEREFORE DEMONSTRATE THE EFFECT OF SURFACE MODIFIED FILLERS ADDITIONON POLYMERIC MEMBRANES PHYSICAL PROPERTIES AND THE CHARACTERISTICS IN TERMS OF WETTABILITY, THERMAL AND MECHANICAL INSTABILITY AND SOLVENT PERMEATION.