کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6376210 | 1624844 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Graft copolymerization of polyDADMAC to cassava starch: Evaluation of process variables via central composite design
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
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چکیده انگلیسی
Grafting of polydiallyldimethylammonium chloride (polyDADMAC) to cassava starch was prepared using potassium persulfate (KPS) as a free radical initiator. Response surface methodology (RSM) comprising a three-level and four-variable central composite designs were implemented for variable evaluation and optimization. These variables include the mole ratio of diallyldimethylammonium chloride (DADMAC) to starch (anhydroglucose unit (AGU)), reaction temperature (°C), initiator concentration (mol/L), and reaction time (t). Grafting percentage was considered as a response from the variable interaction. The optimum condition derived were 1.96 [mole ratio of DADMAC to starch (AGU)], 40 °C (reaction temperature) 0.09 mol/L (initiator concentration) and 4.99 h (reaction time). The actual experimental yield was 21.98% at optimum conditions, which is close to the maximum predicted value of 22.80%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 65, March 2015, Pages 535-545
Journal: Industrial Crops and Products - Volume 65, March 2015, Pages 535-545
نویسندگان
M.A.A. Razali, H. Ismail, A. Ariffin,