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首页> 外文期刊>Journal of Environmental Management >Effective clean-up of organic liquid contaminants including BTEX, fuels, and organic solvents from the environment by poly(alkoxysilane) sorbents
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Effective clean-up of organic liquid contaminants including BTEX, fuels, and organic solvents from the environment by poly(alkoxysilane) sorbents

机译：通过聚（烷氧基硅烷）吸附剂有效清除环境中的有机液体污染物，包括BTEX，燃料和有机溶剂

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摘要

Novel cross-linked poly(alkoxysilane)s, which can be used for the removal of organic liquid contaminants from water, were synthesized in one step, in a solvent free reaction medium, at moderately high temperature without using a catalyst. The synthesized polymers were characterized by Fourier transform infrared spectroscopy (FTIR), solid-state ~(13)C and ~(29)Si cross-polarization magic angle spinning (CPMAS) nuclear magnetic resonance (NMR), thermal gravimetric analysis (TGA) and differential scanning calo-rimetry (DSC) methods and elemental analysis. The swelling features of the poly(alkoxysilane)s were investigated in organic solvents and oils, such as dichloromethane, benzene, toluene, xylene, methyl tertiary butyl ether, and also some fuel derivatives, such as gasoline and euro diesel. All polymers have high-fast solvent uptake abilities, good reusability and thermal stability. The swelling features of the synthesized cross-linked polymers were evaluated by the swelling test, absorption-desorption kinetics. Thus, the results propose that cross-linked poly(alkoxysilane)s are suitable for the absorption of oil-organic pollutants from the water surface.
机译：在无溶剂的反应介质中，不使用催化剂的情况下，一步一步合成了可用于从水中去除有机液体污染物的新型交联聚（烷氧基硅烷）。通过傅里叶变换红外光谱（FTIR），固态〜（13）C和〜（29）Si交叉极化幻角旋转（CPMAS）核磁共振（NMR），热重分析（TGA）对合成的聚合物进行表征差示扫描量热法（DSC）和元素分析。研究了聚（烷氧基硅烷）在有机溶剂和油类中的溶胀特性，例如二氯甲烷，苯，甲苯，二甲苯，甲基叔丁基醚以及一些燃料衍生物，例如汽油和欧洲柴油。所有聚合物均具有高快速溶剂吸收能力，良好的可重复使用性和热稳定性。通过溶胀试验，吸收-解吸动力学评价了合成的交联聚合物的溶胀特征。因此，结果表明，交联的聚（烷氧基硅烷）适合于从水表面吸收油有机污染物。

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