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Most of the polymers do not meet the demands required for both, their surface and bulk properties when used as biomaterials. An effective approach for developing a clinically applicable material is to modify the surface of the material which already has bio functionality.

LDPE is used as a biomaterial in human orthopedic implants due to its excellent properties i.e. low density, high flexibility and high chemical resistance. However despite these excellent properties, LDPE is often incompatible for use as a biomaterial due to its low surface energy, leading to poor wettability and poor adhesion. This work focuses on the surface modification of LDPE by deposition of Benzene Diazonium salt. The treated polymer is characterized using FTIR, Contact angle and TGA and the results are analyzed