BIODEGRADABLE POLYMERS HAVE RECEIVED MUCH MORE ATTENTION IN THE LAST TWO DECADES DUE TO THEIR POTENTIAL APPLICATIONS IN THE FIELDS RELATED TO ENVIRONMENTAL PROTECTION AND THE MAINTENANCE OF PHYSICAL HEALTH. ONE OF THEM IS POLY (BUTYLENE SUCCINATE) (PBS), A BIOCOMPATIBLE LINEAR ALIPHATIC POLYESTER, WHICH CAN BE CHEMICALLY SYNTHESIZED BY POLYCONDENSATION OF 1,4-BUTANEDIOL WITH SUCCINIC ACID. PBS IS COMMERCIALLY AVAILABLE AS A THERMOPLASTIC POLYESTER WITH MANY INTERESTING PROPERTIES, INCLUDING BIODEGRADABILITY, MELT PROCESS ABILITY AND THERMAL AND CHEMICAL RESISTANCE, WHICH MAKE IT A POTENTIAL AND PROMISING MATERIAL IN MANY FIELDS. HOWEVER, PRACTICAL APPLICATION OF PBS HAS BEEN LIMITED BECAUSE OF ITS SOFTNESS, INSUFFICIENT TENSILE, MECHANICAL AND GAS BARRIER PROPERTIES.[1] IN THE PAST FEW YEARS THERE HAS BEEN INTENSE INTEREST IN DISPERSING ORGANICALLY MODIFIED LAYERED SILICATES (OMLS) IN POLYMER MATRICE, PARTICULARLY AS MECHANICAL REINFORCEMENTS AT LOW SILICATE LOADING LEVELS. AS A RESULT OF THEIR HIGH ASPECT RATIO, THE INTRODUCTION OF OMLS IN THE POLYMER MATRIX CAN DRAMATICALLY ENHANCE THE MECHANICAL PROPERTIES AND DECREASE GAS PERMEABILITY AND FLAMMABILITY FOR VARIOUS END-USE APPLICATIONS.[2] POLY (BUTYLENE SUCCINATE) NANO COMPOSITES, HAVE BEEN EXTENSIVELY STUDIED FOR THEIR POTENTIAL USES IN BONE TISSUE ENGINEERING APPLICATIONS AS CELL/TISSUE CULTURE SUBSTRATES.[3] IN THIS RESEARCH WE TRY TO SYNTHESIS POLY(BUTYLENE SUCCINATE)/OMLS NANO COMPOSITES BY IN-SITU POLYMERIZATION METHOD. AFTER THAT WE PREPARE A POROUS SCAFFOLD THROUGH “SOLVENT CASTING AND PARTICULATE LEACHING” METHOD. FINALLY THE BIODEGRADABILITY OF THE NANO COMPOSITE SCAFFOLDS WILL BE INVESTIGATED.