Bioresorbable materials are promising candidates in the field of bone regeneration. Due to the compositional similarity with bone, calcium phosphate-based biomaterials, such as hydroxyapatite (HAp, Ca10(PO4)6(OH)2), β-tricalcium phosphate (β-TCP, Ca3(PO4)2), and biphasic calcium phosphate (BCP), a mixture of HAp and β-TCP, have received most attention for bone repair applications. However, their clinical applications are restricted because of inherent brittleness and poor shape ability1. Composites of polymers and calcium phosphates are being developed with the aim to increase the mechanical scaffold stability and to improve tissue interaction. Introducing a polymer component into the HAp in order to form an organic-inorganic nanocomposite is a method most commonly used to overcome the mechanical weakness of HAp. Among biodegradable and biocompatible polymers, polyvinyl alcohol (PVA) has attracted attention for cartilage and orthopaedic applications.