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Methylcellulose synthesis from corn cobs

Study of the effect of solvent conditions on product properties by thermal analysis

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Abstract

Maize is one of the important cereal crops grown in India and is accompanied by enormous amount of agro wastes generation. About 30 % of this agro waste is corn cobs. In this study, cellulose is extracted from corn cobic agro waste. Three samples of methylcellulose were synthesized employing three different solvent conditions which are (a) solvent free, (b) using toluene, and (c) using acetone. The methylcelluloses, thus produced, were characterized by FT-IR, NMR, DSC, TG, and XRD techniques. The determination of the methoxyl group content was made through the modified procedure of Viebock and Schwappach. The product properties were differentiated by thermal analysis and XRD. The ratio between the absorption intensities of the C–H stretching band at around 2,900 cm−1 and O–H stretching band at around 3,400 cm−1 was observed to evaluate the degree of substitution also. The DS values were found in the order of 0.82, 0.95, and 1.14 for solvent free, toluene, and acetone solvent conditions, respectively.

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Acknowledgments

The author kindly acknowledges the Director, IIP for his kind permission to publish these results. The author thanks the analytical division of Institute for providing analysis. CSIR, New Delhi is acknowledged for research funding.

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  1. Chemical Science Division, Indian Institute of Petroleum, (CSIR-IIP), Dehradun, 248 005, India

    Raj K. Singh

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  1. Raj K. Singh
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Correspondence to Raj K. Singh.

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Singh, R.K. Methylcellulose synthesis from corn cobs. J Therm Anal Calorim 114, 809–819 (2013). https://doi.org/10.1007/s10973-013-3032-4

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