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From the last few decades, the usage of polycarbonate (PC) has tremendously increased due to its engineering properties such as outstanding mechanical strength, superior toughness, and good optical transparency. Owning to these properties, PC has widespread applications in the field of electronics, construction, data storage, automotive industry and subsequently resulted in an ever-increasing volume of post-consumer PC e-waste, which also increases the environmental pollution with time due to its nonbiodegradability nature. Therefore, recycling of PC has become a significant challenge throughout the globe. Herein, we first time reported synthesis of a family of low-cost biodegradable and biocompatible biopolymers using solvent and catalyst free melt polycondensation reaction of recycled PC e-waste derived monomer bis(hydroxyethyl ether) of bisphenol A (BHEEB) along with other renewable resources such as sebacic acid, citric acid and mannitol. The synthesis of the polyester was confirmed by FTIR spectroscopy, NMR spectroscopy, XRD and DSC. The mechanical properties and biodegradation behaviour of the polyester can be fine-tuned by simply varying the monomer feed ratio. In addition to that, the polyester demonstrated excellent shape memory property in ambient temperature along with outstanding recovery properties. In addition to this, the synthesized polyester showed exceptional in vitro and in vivo cytocompatibility as well as cell proliferation rate against mouse fibroblast cells (NIH-3 T3) and biocompatibility, respectively. Therefore, the novel polyesters derived from recycled PC e-waste may be potential resorbable biomaterial for tissue engineering applications in future., (Copyright © 2022 Elsevier B.V. All rights reserved.)

• Green synthesis of bioresorbable polyester from recyclable PET waste and soybean oil. • Mechanical properties and biodegradability of the polyester was dependent on monomer feed ratio. • Polyester showed excellent cytocompatibility and proliferation against stem cell culture. • Polyester guided stem cell differentiation towards both osteogenic and chrondogenic lineages. • The polyester may be strong candidate for interfacial tissue engineering application. Despite the recent progress in the field of tissue engineering still there are great challenges to regenerate osteochondral tissue interface due to its complex material composition and mechanical properties. A series of biomaterials have been developed in the last few decades, still suitable biomaterial remained undiscover to regenerate osteochondral tissue interface. Here we have reported a new family of low cost biopolymer derived from edible soybean oil (SO) and recycled polyethylene terephthalate (PET) waste along with other renewable resources such as citric acid, sebacic acid and mannitol by facile catalyst and solvent free melt polycondensation process. The physicochemical properties of the synthesized polyester can be tailored by simply varying the monomer feed ratio. The polyesters were found to be elastomeric and biodegradable in nature. 3D porous scaffold shows in vitro mineralization which attributes that the polymer may be applicable for bone formation. 2D polyester film exhibited excellent cytocompatibility to the stem cell and interestingly the polyester guided the stem cell towards both osteogenic and chondrogenic differentiation without using any external differentiating chemicals. Thus this novel class of polyester derived from SO, recycled PET waste and other low cost renewable resources may be a potential candidate in field of interfacial tissue engineering for the treatment of arthritic patients in future. [ABSTRACT FROM AUTHOR]

[Display omitted] • Renewable polyol-based polyesters are synthesized via melt polycondensation. • These biodegradable polyesters are used for various medical as well as non-medical applications. • Polyol-based polyesters are degraded to the starting materials via different mechanisms. • Their degradation products are non-toxic and do not cause any harm to the environment. • Polyol-based polyesters can be easily tailored to fit specific need or required properties. The utilization of bio-based materials to develop sustainable products is an emerging area of research. Renewable biomass-derived monomers have gained prominence in recent times in synthesizing green plastics. Polyols are one of the essential renewable materials abundantly available from various natural/synthetic sources for the synthesis of polyesters. This review discusses renewable polyols to generate bio-based, biodegradable polyesters. The degradation of the polyesters generates the starting polyols and diacids, which are highly environmentally friendly chemicals. By carefully selecting process engineering conditions for developing specific elastomeric renewable polyol-based polyesters, chemistry modifications allow them to have innovative technology of industrial orientation. In this review, we have highlighted the synthesis of various biodegradable polyesters based on renewable polyols, their structure–property relationship, and their potential use in various industrial applications, including tissue engineering, drug delivery, additive manufacturing, surfactant as well as in the field of coatings. Additionally, we also emphasized the critical challenges involved in these fields for applications of these polyesters and their potential solutions for a more sustainable and safer future. [ABSTRACT FROM AUTHOR]