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Novel negatively charged hybrids.1.copolymers:Preparation and adsorption properties

机译：新型带负电荷的杂化剂1.共聚物：制备和吸附性能

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摘要

A series of novel negatively charged hybrid copolymers were prepared via free radical polymerization and sol-gel process using 7-methacryloxypropyl trimethoxy silane(MAPTMS)and acrylic acid(AA)monomers.The copolymers obtained can keep thermally stable up to 420 °C.Moreover,a more stable molecular structure and desirable negatively charged properties can be acquired by adjusting silica content and AA content,respectively.The adsorption behaviors of the copolymers were conducted by the aqueous solution containing Cu~(2+)and Pb~(2+)ions.It is indicated that the adsorption followed Lagergren second-order kinetic model and Freundlich isotherm model,suggesting that the adsorption process can be ascribed to chemosorption.According to the adsorptional capacity,the obtained copolymers can be potentially applied in the separation and recovery of heavy metal ions from waste chemicals and contaminated water.
机译：利用7-甲基丙烯酰氧基丙基三甲氧基硅烷（MAPTMS）和丙烯酸（AA）单体通过自由基聚合和溶胶-凝胶法制备了一系列新型的带负电荷的杂化共聚物，所得共聚物可在高达420°C的温度下保持热稳定性。分别通过调节二氧化硅含量和AA含量可以得到更稳定的分子结构和理想的带负电性能。共聚物的吸附行为是在含Cu〜（2+）和Pb〜（2+）的水溶液中进行的。吸附过程遵循Lagergren二阶动力学模型和Freundlich等温模型，表明吸附过程可归因于化学吸附。根据吸附量，所得共聚物可潜在地用于分离和回收离子。来自废化学品和污水的重金属离子。

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