Water absorption and viscosity behaviour of thermally stable novel graft copolymer of carboxymethyl cellulose and poly(sodium 1-hydroxy acrylate)

Bijender Kumar; Yuvraj Singh Negi

doi:10.1016/j.carbpol.2017.11.066

Water absorption and viscosity behaviour of thermally stable novel graft copolymer of carboxymethyl cellulose and poly(sodium 1-hydroxy acrylate)

Carbohydr Polym. 2018 Feb 1:181:862-870. doi: 10.1016/j.carbpol.2017.11.066. Epub 2017 Nov 22.

Authors

Bijender Kumar¹, Yuvraj Singh Negi²

Affiliations

¹ Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, India.
² Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur 247001, India. Electronic address: yuvrajnegi@gmail.com.

PMID: 29254047
DOI: 10.1016/j.carbpol.2017.11.066

Abstract

A novel thermally stable hydrolysed carboxymethyl cellulose-g-poly(sodium 1-hydroxy acrylate) i.e. CMC-g-PNaHA graft copolymer was synthesized from the CMC and vinyl monomer 5-methylene-2-isopropyl-1,3-dioxolan-4-one (MD) in an aqueous medium using an initiator followed by transformation of resulting CMC-g-PMD via alkaline hydrolysis. The graft copolymerization is confirmed by the Fourier transform infrared spectroscopy (FT-IR), Nuclear magnetic resonance spectroscopy (NMR) and X-ray diffractometer (XRD). The influence of the CMC and PNaHA content on the properties of the resulting hydrolysed CMC-g-PNaHA graft copolymer was investigated. In comparison with the PNaHA polymer, the resulted hydrolysed CMC-g-PNaHA grafted copolymer has improved thermal stability, water absorption properties, viscosity and weight-average molecular weight.

Keywords: CMC-g-PNaHA graft copolymer; Graft copolymerization; Inherent viscosity; Thermal stability; Water uptake capacity; Weight-average molecular weight.