High-modulus nanocomposite scaffold based on waterborne polyurethane grafted collagen polypeptide/hydroxyapatite for potential bone healing

A potential nanocomposite scaffold based on waterborne polyurethane grafted collagen polypeptide/hydroxyapatite (WPU-g-CP/HAp) was investigated in this research. First, a non-solvated WPU-g- CP copolymer emulsion was synthesized via water phase cross-linking copolymerization between waterborne polyurethane (WPU) prepolymer and KH550 modified collagen polypeptide (CP). Then, the WPU-g-CP/HAp was fabricated employing bionic precipitation method of...