Authors:
Rina Ridara
1
;
Diana Adnanda Nasution
2
and
Basuki Wirjosentono
2
Affiliations:
1
Postgraduate Chemistry Study Program, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Jl. Bioteknologi No. 1 Kampus USU, Medan, Indonesia, Indonesia
;
2
Departement of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Medan, Indonesia
Keyword(s):
cellulose, Belangke bamboo, modification, antimicrobial compound
Abstract:
In this work, pulp cellulose (Cell) was prepared from Belangke bamboo (gigantochloa pruriens) by Craft delignification process. The AETAC/MA-modified Cellulose (AETAC/MA-g-Cell) was characterised using infrared spectorcopy (FTIR) for chemical structure, differential scanning calorymetry (DSC) for thermal properties and scanning electron microscopy (SEM) for morphological images. Results of FTIR spectra of the AETAC/MA-g-Cell after exhaustive Sokhlet extraction in n-hexane still showed stable absorption peak of AETAC/MA carbonyl group (>C=O) at 1705 cm-1 and dissapearance of double bond absorption peak af acryloyl graoup (>C=C<) at 1630 cm-1. These evidences indicated that the AETAC/MA modifiers have successfully bound into the cellulose, in which hydroxyl groups of the cellulose have esterified with maleic anhydride and bound with acryloyl groups of AETAC. Further data of DSC analysis of the modified cellulose showed slightly lower decomposition temperature of 300oC when compared to
that of fresh cellulose of 270-400oC. Whereas SEM images of the modified cellulose also indicated rougher surface when compared to that of fresh cellulose fibres. The AETAC/MA-modified cellulose then may be utilised as antimicrobial materials for various cellulose products.
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