Preparation of konjac glucomannan-based superabsorbent polymers by frontal polymerization

被引：41
|
作者：
Li, Jing [1 ]
Ji, Jie [1 ]
Xia, Jun [2 ]
Li, Bin [1 ]
机构：
[1] Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Hubei, Peoples R China
[2] Yichang Inst Prod Qual Supervis & Inspecting, Yichang 443000, Hubei, Peoples R China
来源：
CARBOHYDRATE POLYMERS | 2012年 / 87卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Frontal polymerization; Konjac glucomannan; Superabsorbent polymers; Water absorbency; FREE-RADICAL POLYMERIZATION; SOLVENT-FREE SYNTHESIS; MICROENCAPSULATED INITIATOR; GRADIENT MATERIALS; MOLECULAR-WEIGHT; FACILE SYNTHESIS; NANOCOMPOSITES; TEMPERATURE; HYDROGELS; POLYURETHANE;
D O I：
10.1016/j.carbpol.2011.08.060
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Frontal polymerization was used to prepare two kinds of superabsorbent polymers (SAP) called konjac glucomannan-acrylic acid-acrylamide (KGM-AA-AM) polymers and konjac glucomannan-acrylic acid-kaolin (KGM-AA-Kaolin) polymers. As preparation of KGM-AA-AM, it was found that features of front propagation including front velocity and maximum temperature (T(max)) were dependent on the amount of acrylamide, initiator (potassium persulfate) and water, which influenced characterization of final products in the former. However, in the other polymer system, when Kaolin/AA ratio reached 0.30, the highest water absorbency was obtained, 1941 gig in distilled water and 93 gig in physiological saline. That indicates kaolin is a potential material to enhance water absorbency of FP products. (C) 2011 Elsevier Ltd. All rights reserved.
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页码：757 / 763
页数：7
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