2004
DOI: 10.1016/j.memsci.2004.05.019
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Microporous membranes prepared from cellulose in NaOH/thiourea aqueous solution

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Cited by 108 publications
(53 citation statements)
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“…Guaiacyl (G) and syringyl (S) are the main units of lignin, but the ratio of S/G varies from one to another plant. It was reported recently by del Río et al [79] that S/G values calculated upon FTIR were in agreement with those calculated upon Py-GC/MS at the bands of 1271cm -1 and 1327cm -1 respectively. However, the study on hemp fibre showed that the bands at 1271cm -1 and 1327cm -1 , assigned as G-ring stretching and S ring stretching respectively, were shifted to lower wavenumbers: for the hemp fibres without dislocations (Figure 12a), the G ring and S ring stretching appear at the bands of 1259cm -1 and 1325cm -1 and for the dislocation regions at 1261cm -1 and 1325cm -1 (Figure 12b).…”
Section: Chemical Composition Of Natural Fibres By Using Ftirsupporting
confidence: 87%
“…Guaiacyl (G) and syringyl (S) are the main units of lignin, but the ratio of S/G varies from one to another plant. It was reported recently by del Río et al [79] that S/G values calculated upon FTIR were in agreement with those calculated upon Py-GC/MS at the bands of 1271cm -1 and 1327cm -1 respectively. However, the study on hemp fibre showed that the bands at 1271cm -1 and 1327cm -1 , assigned as G-ring stretching and S ring stretching respectively, were shifted to lower wavenumbers: for the hemp fibres without dislocations (Figure 12a), the G ring and S ring stretching appear at the bands of 1259cm -1 and 1325cm -1 and for the dislocation regions at 1261cm -1 and 1325cm -1 (Figure 12b).…”
Section: Chemical Composition Of Natural Fibres By Using Ftirsupporting
confidence: 87%
“…Conventional solvents, including sulfuric acid, phosphoric acid, lithium chloride/N, N-dimethylacetamide, sodium hydroxide/urea, and tetrabutylammonium fluoride trihydrate/dimethyl sulfoxide, can potentially cause severe pollution (Ruan et al 2004;Ru et al 2015). Therefore, a cleaner dissolution of cellulose requires "greener" solvents (Sun et al 2011;Badgujar and Bhanage 2015).…”
Section: Introductionmentioning
confidence: 99%
“…Campuran dispersi ditaruh ISSN 2549 -2888 di dalam kantong yang memiliki lubang yang cukup kecil dimana partikel yang tidak terlarut bisa lolos keluar. Pemisahan ini disebut pemisahan selektif [20]. Jumlah partikel selulosa dari sampel perlakuan dialysis berjumlah sekitar 10.000.…”
Section: C) Pengaruh Perlakuan Ultrasonication Dan Dialysis Pada Ukurunclassified