Abstract
Polyglycolide (PGA), owing to its optimal biocompatibility and degradability, is widely used in the biomedical application. In this work, a catalyst-free approach at room temperature for preparing PGA coating on magnesium alloy with controllable morphology and thickness is proposed. The morphology and thickness of the PGA coating is controlled by adjusting the electrografting duration. ToF-SIMS analysis showed that the electrografting provides a covalent bond connection between the PGA coating and the magnesium alloy substrate. In addition, the formation mechanism of PGA coating is explained by the experimental results. This work verifies the applicability of electrografting to prepare polymeric coating under specific conditions.
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