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A novel injectable in situ cross-linked hydrogel was prepared from α,β-poly(N-hydroxyethyl)-dl-aspartamide (PHEA), which had excellent biocompatibility and biodegradability. PHEA was modified by acryloyl chloride (AC) via the reaction between hydroxyl groups and acryl groups to introduce reactable double bonds into the chain. Two macromers with different degrees of derivatization were prepared. Through...
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