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http://repository.ipb.ac.id/handle/123456789/48384
Title: | Superabsorben hasil pencangkokan dan penautan-silang fraksi nonpati onggok dengan akrilamida |
Authors: | Nur, M. Anwar Khotib Widiyanto |
Keywords: | Bogor Agricultural University (IPB) |
Issue Date: | 2011 |
Publisher: | IPB (Bogor Agricultural University) |
Abstract: | Carbohydrates of onggok consist mostly of starch and cellulose fractions. Both fractions have high potential for modification to a superabsorbent. Onggok with Ammonium persulfate serves as an initiator, acrylamide serves as a monomer, and N,N-methylenebisacrylamide as a cross-linker. Onggok was activated using 60% H2SO4 at 60 oC for 1 hour and saponified using with 1M NaOH at 90 oC for 2 hours. The best ratio of onggok:water was 1:30, and the optimum temperature was 70 oC for obtaining the highest water absorption capacity. Absorption capacity was of the non-starch fraction, non-starch fraction plus activation, non-starch fraction plus saponification, and non-starch fraction plus activation plus saponification treatments were 25.21, 53.37, 273.3 and 262.07 g/g, respectively. The effect of activation treatment was not significant, while that of saponification increased significantly its absorption capacity. Scanning electron microscopy micrograph of non-starch fraction showed that starch granules were disappeared by HCl hydrolysis treatment. It indicated that the process hydrolysis succeeded. Fourier transform infrared spectroscopy spectrum showed a new peak at wave number of 1600 cm-1 that indicated an amide group, meaning that the grafting cross-linking process was succeeded and at 3300 cm-1 showed a sharp absorption peak that indicated the activation treatment was succeeded as well. |
URI: | http://repository.ipb.ac.id/handle/123456789/48384 |
Appears in Collections: | UT - Chemistry |
Files in This Item:
File | Description | Size | Format | |
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Abstract_ G11wid.pdf Restricted Access | Abstract | 284.66 kB | Adobe PDF | View/Open |
BAB I Pendahuluan_ G11wid.pdf Restricted Access | BAB I | 356.36 kB | Adobe PDF | View/Open |
BAB II Tinjauan Pustaka_ G11wid.pdf Restricted Access | BAB II | 415.1 kB | Adobe PDF | View/Open |
BAB III Bahan dan Metode_ G11wid.pdf Restricted Access | BAB III | 496.78 kB | Adobe PDF | View/Open |
BAB IV Hasil dan Pembahasan_ G11wid.pdf Restricted Access | BAB IV | 742.5 kB | Adobe PDF | View/Open |
BAB V Simpulan_ G11wid.pdf Restricted Access | BAB V | 323.96 kB | Adobe PDF | View/Open |
Cover_ G11wid.pdf Restricted Access | Cover | 288.3 kB | Adobe PDF | View/Open |
Daftar Pustaka_ G11wid.pdf Restricted Access | Daftar Pustaka | 327.79 kB | Adobe PDF | View/Open |
G11wid.pdf Restricted Access | Full Text | 1.18 MB | Adobe PDF | View/Open |
Lampiran_ G11wid.pdf Restricted Access | Lampiran | 738.41 kB | Adobe PDF | View/Open |
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