Pengaruh Variasi Konsentrasi Metanol Terhadap Daya Serap Dan Permeabilitas Metanol Membran Komposit Kitosan/Montmorilonit-Glutaraldehid

Sintesis membran komposit kitosan/montmorilonit- glutaraldehid (CS/MMT-GA) telah dilakukan dengan menggunakan metode inversi fasa. Pada penelitian ini, kitosan sebagai matriks polimer, montmorilonit sebagai filler anorganik dan glutaraldehid sebagai agen pengikat silang. Tujuan penelitian ini adalah untuk mengetahui pengaruh variasi konsentrasi metanol (1; 2; 3; 4; 5 M) terhadap daya serap dan permeabilitas metanol membran komposit kitosan/montmorilonit-glutaraldehid. Hasil FTIR menunjukkan bahwa membran komposit CS/MMT-GA telah berhasil disintesis. Modifikasi dengan glutaraldehid memperbaiki sifat dan kinerja membran komposit. Peningkatan konsentrasi metanol cenderung menurunkan daya serap dan permeabilitas metanol. Metanol dengan konsentrasi 5 M menunjukkan hasil yang paling baik yakni nilai prosentase daya serap metanol sebesar 47,53% dan permeabilitas metanol sebesar 2,2664 x 10 -7 2 -1 cm s ============================================================================================ Synthesis of composite membrane chitosan / montmorillonite-glutaraldehyde (CS / MMT-GA) was performed using the method of phase inversion. In this study, chitosan as the polymer matrix, montmorillonite as the inorganic filler and glutaraldehyde as crosslinking agent. The purpose of this research was to determine the effect of variations in the concentration of methanol (1; 2; 3; 4; 5 M) of the methanol uptake and permeability of composite membrane chitosan / montmorillonite- glutaraldehyde. FTIR results showed that the composite membrane CS / MMT-GA has been successfully synthesized. Modifications with glutaraldehyde improve the properties and performance of the composite membrane. Increasing concentrations of methanol tends to decrease the absorption and permeability of methanol. Methanol with a concentration of 5 M showed the best result that the percentage of absorption of 47.53% methanol and methanol permeability of 2.2664 x 10-7 cm 2 -1