Authors:
Tamrin
1
and
Emma Zaidar
2
Affiliations:
1
Universitas Sumatera Utara, Indonesia
;
2
Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Indonesia
Keyword(s):
Hydrogel IPN, Coconut water, bacterial cellulose
Abstract:
Research heve been done to find out the effect of variation moleculer weight polietylen glikoln 1000; 3000 and 6000 on manufacture semi interpenetrating polymer networks hidrogel from bacterial selulose with sytem fermentation using accetobacterial-xylinum in based coconut water. IPN hidrogel by polietilenglikol 6000 has more croslinks compared using peg 3000 and peg 1000. Analysis thermal hidrogel IPN using peg 6000 is 457,14 0C, compared PEG 3000 is 252, 80 0C and PEG 1000 is 249,30 0C. semi-IPN hydrogel formed was characterized by, crosslink percentage, chemistry structural analysis using Fourier Transform Infrared (FT-IR) spectroscopy, water absorption test and thermal resistance using Differential Thermal Analysis (DTA). From the analysis, they showed Semi Interpenetrating Polymer Network Hydrogel with uing PEG 6000 the highest crosslink percentage (64,3%).for PEG 3000 is 42.5 % and PEG 1000 is 15. 7 %.. Characterization results of FTIR indicate the occurrence of crosslinking
between Polyacrylic acid and MBA.This shown in existence of 1403 cm-1 and 1560 cm-1 (COO-) and 3413 cm-1 (NH amine). Thermal analysis using Differential Thermal Analysis (DTA) shows thermal optimum thermal stability at the addition of Polietilengiikol 6000 to semi-IPN hydrogel which was completely degraded at 680oC, reaction that occurs during the decomposition process is endothermic and exothermic reaction.
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