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GRAFT COPOLYMERIZATION OF ACRYLONITRILE ONTO ALLYLATED PINEAPPLE LEAF (Ananas comosus) FIBRE BY CERIC ION – N-BUTYL ACETATE REDOX SYSTEM

Author(s) Oluwafemi Ibukun Shittu, Sodiq Babatunde Yusuf, Monsour Olawale Zakariyah, Abdullahi Tunde Aborode
Country United States
Abstract Graft copolymerization of acrylonitrile onto allylation pineapple (Ananas comosus) fiber by ceric ion-butyl acetate redox pair was investigated in aqueous media. The degree of substitution of the fiber was 2.39 mole which suggests that at least two of the hydroxyl groups of anhydroglucose units of the fiber were substituted. The graft yield increased initially and then decreased with an increase in ceric ion concentration at the range of 4.17 – 20.80 × 10-3M. The initial increase arises from increased redox interaction of the ceric ion with the fiber but the decrease in the graft yield suggested the involvement of the ceric ion in the termination of grafted polymer. Fourier Transform Infra-red spectroscopy showed the existence of allylation of the fiber at 1642.58 cm-1 and 1157.54 cm-1 characteristics for –C=C– and –C-O-C– stretching vibration. Further, the band at 2238.4 cm-1characteristics for –CN stretching vibration confirmed the formation of the graft copolymer.
Keywords Graft copolymerization, Fibre, anhydroglucose, allylation, acrylonitrile, Pineapple leaf fiber; (Ananas comosus), holocellulose
Field Chemistry
Published In Volume 16, Issue 1, January-March 2025
Published On 2025-01-03
Cite This GRAFT COPOLYMERIZATION OF ACRYLONITRILE ONTO ALLYLATED PINEAPPLE LEAF (Ananas comosus) FIBRE BY CERIC ION – N-BUTYL ACETATE REDOX SYSTEM - Oluwafemi Ibukun Shittu, Sodiq Babatunde Yusuf, Monsour Olawale Zakariyah, Abdullahi Tunde Aborode - IJSAT Volume 16, Issue 1, January-March 2025. DOI 10.71097/IJSAT.v16.i1.1147
DOI https://doi.org/10.71097/IJSAT.v16.i1.1147
Short DOI https://doi.org/g82pc4
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