多金属氧酸盐
聚乙二醇
自愈水凝胶
材料科学
拉曼光谱
PEG比率
氧化物
氢键
化学工程
纳米技术
高分子化学
分子
化学
有机化学
光学
冶金
经济
催化作用
工程类
物理
财务
作者
Liana S. Alves,Linfeng Chen,Carl E. Lemmon,Milan Gembický,Mingjie Xu,Alina M. Schimpf
出处
期刊:ACS materials letters
[American Chemical Society]
日期:2022-09-06
卷期号:4 (10): 1937-1943
标识
DOI:10.1021/acsmaterialslett.2c00393
摘要
We present the synthesis of metal oxide frameworks composed of the Preyssler anion, [NaP5W30O110]14–, bridged with transition-metal cations and infiltrated with polyethylene glycol. The frameworks can be dissolved in water to form freestanding rigid or flexible films or gels. Powder X-ray diffraction shows that all form-factors maintain the short-range order of the original crystals. Raman spectroscopy reveals that, similar to hydrogels, the macroscopic mechanical properties of these composites are dependent on the water content and the extent of hydrogen-bonding within the water network. The understanding gained from these studies facilitates solution-phase processing of polyoxometalate frameworks into flexible form factors.
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