Low cost and renewable sulfur-polymers by inverse vulcanisation, and their potential for mercury capture
Low cost and renewable sulfur-polymers by inverse vulcanisation, and their potential for mercury capture
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DOI：
10.1039/c6ta09862b
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发表时间：
2017-06-21
影响因子：
11.9
通讯作者：
Hasell, T.
中科院分区：
文献类型：
--
作者：
Parker, D. J.;Jones, H. A.;Hasell, T.
硫不仅是一种丰富的元素，而且是石油化工工业的副产品。然而，由于聚合硫不稳定，并分解回其单体，因此其通常不用于生产功能材料。最近，反向硫化已被用于生产以元素硫作为主要组分的稳定的聚合物材料。在这里，我们报告了一系列用于反向硫化的替代交联剂，它们要么是低成本的工业副产品，要么是生物衍生的可再生能源。这些显示出产生稳定的聚合物，其具有优于先前报道的材料的上级性能。当通过超临界二氧化碳或盐模板的作用使其多孔时，这些高硫聚合物显示出优异的汞捕获和过滤潜力。
Sulfur is not only a highly abundant element, but also produced as a by-product of the petrochemicals industry. However, it has not been conventionally used to produce functional materials because polymeric sulfur is unstable, and decomposes back to its monomer. Recently, inverse vulcanisation has been used to produce stable polymeric materials with elemental sulfur as a major component. Here we report a series of alternative crosslinkers for inverse vulcanisation that are either low-cost industrial byproducts, or bio-derived renewables. These are shown to produce stable polymers with superior properties to previously reported materials. When made porous by the action of supercritical carbon dioxide or salt templating, these high sulfur polymers show excellent potential for mercury capture and filtration.