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Abstract

Increase in generation of the paper waste around the world, especially in developing countries, has created a need to develop new ways to use this waste to obtain value-oriented products. Due to limited availability of petroleum resources and related environmental concerns, petroleum-based precursors for polymeric materials are being replaced by renewable resources, which are abundant in nature and economic. Paper waste is a rich source of cellulose, which can be chemically modified to produce valuable products. Polymeric precursors (polyols) were synthesized by glycosylation of cellulose of paper waste, obtained from magazines and transesterifying the obtained product using castor oil. The synthesized products were characterized by Fourier transform infrared spectroscopy, high performance liquid chromatography, and physicochemical analysis. The resultant polyols were of dark color, low viscosity, % nonvolatile mater <1, hydroxyl value ranging 200—400, moisture content <1%, and acid value <2.5. These synthesized precursors with good characteristics to use it for the synthesis of polymeric materials were used for the synthesis polyurethane foams, which were tested for their physical, mechanical, thermal (thermogravimetric analysis), and morphological (scanning electron micrograph) characteristics.

Keywords

paper waste cellulose deinking polymer precursors renewable resource.

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Value-based Polymer Precursors from Paper Waste and its Application in Polyurethane Foams

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