Preparation of Thermoplastic Magnetic Wood via Etherification and In-Situ Synthesis of Iron Oxide
Preparation of Thermoplastic Magnetic Wood via Etherification and In-Situ Synthesis of Iron Oxide
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DOI：
10.1080/02773813.2010.523165
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发表时间：
2010-11
影响因子：
2
通讯作者：
Y. Matsumoto;Yoshikuni Teramoto;Y. Nishio
中科院分区：
文献类型：
--
作者：
Y. Matsumoto;Yoshikuni Teramoto;Y. Nishio
摘要：通过醚化反应，将木粉（WF）转化为热塑性材料和载体基质，用于原位合成氧化铁纳米颗粒；即大量的羟丙基化和适度的羧甲基化。原位合成氧化铁的一系列步骤包括：乙醚化WF的亚铁离子吸收、碱性处理的氢氧化铁沉淀以及氢氧化铁的氧化。磁性木本复合材料在室温下表现出超顺磁性。SPM的观察可能对只在需要时和没有能量损失时对外部磁刺激的感知有重要意义。
Abstract Wood flour (WF) was converted not only to thermoplastic material but also to carrier matrix for in-situ synthesis of iron oxide nano-particles by a set of etherification; namely, considerable hydroxypropylation and modest carboxymethylation. A sequence of procedure for the in-situ synthesis of iron oxides includes ferrous ion-absorption of the etherified WF, precipitation of ferrous hydroxide by an alkaline treatment, and oxidation of the ferrous hydroxide. Magnetometry measurements revealed that the magnetic woody composite showed superparamagnetism (SPM) at room temperature. The observation of SPM may be of significance in the perceptibility to an external magnetic stimulus only on demand and without energy loss.