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超顺磁性海藻酸钠的制备及其结构研究
引用本文:胡剑,温其标.超顺磁性海藻酸钠的制备及其结构研究[J].现代食品科技,2005,21(3):8-10.
作者姓名:胡剑  温其标
作者单位:华南理工大学食品与生物工程学院,广东,广州,510640
基金项目:教育部博士学科点专项科研基金(20030561015),
摘    要:采用氧化法制备巨藻型及海带型超顺磁性海藻酸钠,通过X-衍射、扫描电镜、古埃磁天平分析;结果表明,氧化法生成的磁性离子体达到纳米级(44.656~66.99nm),在海藻酸钠中分布比较均匀,巨藻型海藻酸钠制备的磁性海藻酸钠磁化率比海带型海藻酸钠的高1~2倍。

关 键 词:海藻酸钠  超顺磁性  氧化法
文章编号:1007-2764(2005)03-0010-03
修稿时间:2005年4月28日

Synthesis and Formation of Superparamagnetic Alginate
Hu Jian,WEN Qi-biao.Synthesis and Formation of Superparamagnetic Alginate[J].Modern Food Science & Technology,2005,21(3):8-10.
Authors:Hu Jian  WEN Qi-biao
Abstract:A Sargassum fluitans alginate and Macrocystis pyrifera alginate with superparamagnetic properties were synthesized via formation of iron oxides inside the polymer matrix. X-ray diffraction,scan electron microscopy (SEM) and magnetic scale were recorded for the characterization of the magnetic phase. The result showed: The samples exhibit superparamagnetic properties due to the presence of ferrimagnetic nanoparticles (44.66-66.99nm),equably distributed in the alginate matrix; the magnetic ratio of oxidized magnetization Macrocystis pyrifera alginate as 1-2 times as oxidized magnetization Sargassum fluitans alginate
Keywords:Alginate  Oxidize  Superparamagnetic
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