Research on the tpe biodegradable biomedical polymer materials

Abstract

Biomedical polymer materials have been widely applied in biological and medical fields. When the polymer materials were in contact with human body permanently or transiently, they can cause the adverse biological reactions such as inflammation, carcinogenesis, forming thrombus and so on. The adverse biological reactions were caused by the action of materials surface and biological environment. The surface modification of polymer materials can enhance its biocompatibility. This paper is related to the surface modification of PE films by combining plasma pretreatment with UV-induced graft polymerization, in order to improve the antithrombogenicity of polyethylene (PE) films. For improving antithrombogenicity of PE films, the films pretreated by Ar plasma were subjected to UV-induced graft polymerization with acrylamide (AAm) without photo- initiator. It takes further use of plasma technology to do the surface modification for the polylactic acid of biodegradable polymer materials.