Novel hybrid materials obtained by intercalation of organic comb polymers into Ca-Al-LDH
Novel hybrid materials obtained by intercalation of organic comb polymers into Ca-Al-LDH
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DOI：
10.1016/j.jpcs.2007.10.042
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发表时间：
2008-05
影响因子：
4
通讯作者：
J. Plank;Z. Dai;N. Zouaoui
中科院分区：
文献类型：
--
作者：
J. Plank;Z. Dai;N. Zouaoui
铝酸三钙在“梳状”聚羧酸共聚物水溶液中的再水化制备了具有层状结构的新型无机-有机杂化材料。[Ca 2Al（OH）6]+主层之间的层间距离由梳形聚合物的聚（环氧乙烷）接枝链的长度决定。因此，聚合物在无机层的堆叠过程中充当模板。当侧链中环氧乙烷单元的数目超过100时，聚羧酸酯的插层能力急剧下降。通过XRD、元素分析、红外光谱、热重分析和透射电镜表征了钙铝聚羧酸盐（PC）-层状双氢氧化物（LDH）纳米复合材料的组成。
Rehydration of tricalcium aluminate in aqueous solutions of “comb-like” polycarboxylate copolymers produces novel inorganic–organic hybrid materials with layered structure. Interlayer distance between the [Ca2Al(OH)6]+main layers is determined by the length of the poly(ethylene oxide) graft chains of the comb polymers. Thus, the polymer acts as a template in the stacking process of the inorganic layers. The ability of the polycarboxylates to intercalate decreases sharply when the number of ethylene oxide units in the side chain exceeds 100. Composition of the Ca–Al–polycarboxylate(PC)–layered double hydroxide (LDH) nanocomposites was confirmed by XRD, elemental analysis, IR spectra, thermogravimetry and TEM pictures.