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Studies of crosslinked biopolymer structure for environmental tools in terms of the rheological measurements: part B
Environmental Earth Sciences ( IF 2.8 ) Pub Date : 2021-04-07 , DOI: 10.1007/s12665-021-09549-y
Daeik Kim , Joon-Seok Park , Runkai Wang , Teh Fu Yen

The crosslinked biopolymer structure constructed by blending different biopolymers or adding crosslink agent to biopolymers was studied. The rate of crosslink reaction was estimated with rheological measurements, such as elasticity and viscosity, glass transition temperature, crosslinking density, and gelation. Intermolecular and intramolecular association among polymer chains resulted in the formation of a complex three-dimensional (3-D) network as a single, double, or triple helix. These aggregates are progressively disrupted under an influence of applied shear forces that can be heat or pressure for a long period time. Nonetheless, such crosslinked structure exhibited the unique properties that may be found in a crosslinked structure. Therefore, such 3-D crosslinked structure can make an effective tool to stabilize such hazardous materials as heavy metals, toxic organics, and radioactive waste in a subsurface engineering system. In this study, the rate of crosslinking reaction in a biopolymer structure was fundamentally determined with the measurement of rheological properties.



中文翻译:

从流变学角度研究用于环境工具的交联生物聚合物结构:B部分

研究了通过混合不同的生物聚合物或在生物聚合物中添加交联剂而构建的交联生物聚合物结构。交联反应的速率通过流变学测量来估算,例如弹性和粘度,玻璃化转变温度,交联密度和凝胶化。聚合物链之间的分子间和分子内缔合导致形成复杂的三维(3-D)网络,如单螺旋,双螺旋或三螺旋。这些骨料在施加的剪切力的影响下会逐渐破裂,这些剪切力在很长一段时间内可能是热或压力。但是,这种交联结构表现出可以在交联结构中发现的独特性质。所以,这种3-D交联结构可以成为有效的工具,以稳定地下工程系统中的重金属,有毒有机物和放射性废物等有害物质。在这项研究中,生物聚合物结构中的交联反应速率是通过流变性能的测量从根本上确定的。

更新日期:2021-04-08
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