Synthesis of superabsorbents from Amaranthus starch

被引：49

作者：

Teli, M. D. ^{[1
]}

Waghmare, Nilesh G. ^{[1
]}

机构：

[1] Inst Chem Technol, Dept Fibres & Text Proc Technol, Bombay 400019, Maharashtra, India

来源：

CARBOHYDRATE POLYMERS | 2010年 / 81卷 / 03期

关键词：

Amaranthus starch; Starch extraction; Grafting; Superabsorbent; GRAFT-COPOLYMERIZATION; POTASSIUM PERSULFATE; WATER ABSORBENCY; REDOX INITIATOR; COMPOSITE; SORGHUM; MILLET; CROP;

D O I：

10.1016/j.carbpol.2010.03.037

中图分类号：

O69 [应用化学];

学科分类号：

070301 [无机化学];

摘要：

A mixture of acrylamide (AM) and acrylic acid (AA) monomers was grafted on gelatinized Amaranthus starch using potassium persulfate (KPS) as an initiator to yield superabsorbent. The effects of different parameters such as time, temperature, monomer feed (AM:AA), starch:monomers ratio and initiator concentration on graft add-on were studied, and the optimized values were found to be 2 h, 65 degrees C. 1:1 (w/w), 1:1(w/w),and 1% (with respect to starch powder) respectively. The product so formed was saponified with 0.1N NaOH, dried and finely powdered sample was characterized using FTIR, TGA, and XRD. Product showed maximum absorbency of 155 g/g, qualifying itself to be called as superabsorbent. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：695 / 699

页数：5

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