Innovations in applications and prospects of non-isocyanate polyurethane bioplastics

Mangal, M and Supriya, H and Bose, S and Banerjee, T (2023) Innovations in applications and prospects of non-isocyanate polyurethane bioplastics. In: Biopolymers, 114 (12).

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Abstract

Currently, conventional plastics are necessary for a variety of aspects of modern daily life, including applications in the fields of healthcare, technology, and construction. However, they could also contain potentially hazardous compounds like isocyanates, whose degradation has a negative impact on both the environment and human health. Therefore, researchers are exploring alternatives to plastic which is sustainable and environmentally friendly without compromising its mechanical and physical features. This review study highlights the production of highly eco-friendly bioplastic as an efficient alternative to non-biodegradable conventional plastic. Bioplastics are produced from various renewable biomass sources such as plant debris, fatty acids, and oils. Poly-addition of di-isocyanates and polyols is a technique employed over decades to produce polyurethanes (PUs) bioplastics from renewable biomass feedstock. The toxicity of isocyanates is a major concern with the above-mentioned approach. Novel green synthetic approaches for polyurethanes without using isocyanates have been attracting greater interest in recent years to overcome the toxicity of isocyanate-containing raw materials. The polyaddition of cyclic carbonates (CCs) and polyfunctional amines appears to be the most promising method to obtain non-isocyanate polyurethanes (NIPUs). This method results in the creation of polymeric materials with distinctive and adaptable features with the elimination of harmful compounds. Consequently, non-isocyanate polyurethanes represent a new class of green polymeric materials. In this review study, we have discussed the possibility of creating novel NIPUs from renewable feedstocks in the context of the growing demand for efficient and ecologically friendly plastic products. © 2023 Wiley Periodicals LLC.

Item Type:	Journal Article
Publication:	Biopolymers
Publisher:	John Wiley and Sons Inc
Additional Information:	The copyright for this article belongs to the John Wiley and Sons Inc.
Keywords:	Amines; Biodegradable polymers; Elastomers; Fatty acids; Feedstocks; Hazards; Polyurethanes; Reinforced plastics; Toxicity, Bio-plastics; Conventional polyurethane; Daily lives; Hazardous compounds; Hazardous impact; Healthcare technology; Human health; Mechanical feature; Nonisocyanate polyurethane; Physical features, Biodegradability
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	18 Dec 2023 03:03
Last Modified:	18 Dec 2023 03:03
URI:	https://eprints.iisc.ac.in/id/eprint/83476

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