BOGOR
2011
DAFTAR PUSTAKA
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Lampiran 1 Diagram alir penelitian
Onggok tapioka
• Pencangkokan dan penautan
Polimer Prototipe I • Saponifikasi Polimer Prototipe II Analisis Kadar N Kjeldahl (Peubah “y”) Spektrum FTIR (Peubah “x”) Spektrum FTIR (Peubah “x”) Analisis Kadar N Kjeldahl (Peubah “y”) PLS PCA PLS PCA
Lampiran 2 Sintesis Onggok ter-grafting dan crosslinking akril amida (Graftized Crosslinked Onggok)
Onggok tapioka kasar • Dicuci dengan air • Dikeringudarakan
• Dihaluskan hingga lolos ayakan 100 mesh Onggok tapioka bersih & halus
• Dimasukkan ke dalam labu leher tiga • (+) 150 mL air, diaduk (overhead stirer) • ∆ 95°C, Embusan dengan gas N2, 30 menit
• ∆ 60°C − 65°C, (+) APS (dalam 12,5 mL air), 15 menit, diaduk
• (+) AA dan MBA (dalam 200 mL air), perlahan, 20 – 30 menit, suhu dijaga minimal 55°C, diaduk
• ∆ 70°C, 3 jam, diaduk
Graftized Crosslinked Onggok • Didinginkan
• (+) 200 ml MeOH, 0,5 jam, diaduk • (+) 200 ml EtOH, 5 menit, diaduk • Dipisahkan antara padatan dan cairan
Graftized Crosslinked Onggok
• (+) 150 – 200 ml aseton, direfluks selama 1 jam • Dipisahkan antara padatan dan cairan
MeOH + EtOH
Graftized Crosslinked Onggok Homopolimer PAA • Dikeringkan di oven pada suhu 60°C
Graftized Crosslinked Onggok
Fasa padat Fasa cair
Lampiran 3 Saponifikasi Graftized Crosslinked acrylamide Onggok (Nakason et al 2010)
Graftized Crosslinked Onggok (40g) • (+) 100 ml NaOH 1M • (+) 100 ml air destilata • Refluks (T=90oC)
• (+) HCl 1M sampai netral
• (+) MeOH sampai mengendap sempurna • Dipisahkan antara padatan dan cairan
• Dikeringkan pada suhu 60o
C (di oven) • Dihaluskan
Saponified Graftized Crosslinked Onggok (40g)
H–Saponified Graftized Crosslinked Onggok
Padatan Cairan
MeOH + NaCl(aq)