Ionic liquids (ILs) hydrogels as an appropriate candidate for the absorption of nanoparticles have gained immense interest because of its environmental friendliness, low cost, high efficiency, and insensitivity to toxic substances. However, conventional ILs hydrogels usually suffer from brittleness and mechanical defects. Herein, a novel entrapped pattern and structural transformation of ILs within a copolymer of acrylamide/N,N-dimethylaminoethyl methacrylate bromododecane hydrophobic monomers p(AM/DMLB)-based hydrogels were prepared through changing the filling pattern of ILs to form toughened hydrophobic association hydrogels. After the ionic liquids latex sphere particles (ILs-LPs) were added, both the ionically cross-linked network and hydrophobic association network were fabricated, which could effectively reconstruct the structure and dissipate energy. It was found that the p(AM/DMLB)/ILs-LPs hydrogels possessed high mechanical properties, and the tensile strength, elongation, and toughness reached 0.49 MPa, 2300%, and 4.9 MJ/m³, respectively. Without the addition of other additives and cross-linking agents, the hydrogel could act as a template for in situ and stable Pd nanoparticles. More importantly, the excellent biocompatibility, remoldability, and fatigue resistance endowed the p(AM/DMLB)/ILs-LPs hydrogels/Pd with recycled and reused performances, which was possible for bestowing samples with any desired shape and even giving them the ability to serve as catalysts for promising practical applications. Therefore, the innovative design strategy for ionic liquids’ latex sphere particles as the sole joint center of a dual physically cross-linked network could be used to develop robust and stretchable hydrogel materials for catalytic use in the sewage disposal industry.

中文翻译：

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量身定制的离子液体包封方法赋予水凝胶优异的机械和催化活性

离子液体（ILs）水凝胶作为吸收纳米颗粒的合适候选物，由于其对环境友好，成本低，效率高以及对有毒物质不敏感而引起了极大的兴趣。然而，常规的ILs水凝胶通常具有脆性和机械缺陷。在本文中，丙烯酰胺/ N，N共聚物中IL的新型包埋图案和结构转变通过改变离子液体的填充方式，形成增韧的疏水缔合水凝胶，制备了甲基丙烯酸二甲基氨基乙酯甲基溴十二烷疏水性单体p（AM / DMLB）。加入离子液体乳胶球颗粒（ILs-LPs）后，既可以形成离子交联网络又可以形成疏水缔合网络，从而可以有效地重构结构并耗散能量。发现p（AM / DMLB）/ ILs-LPs水凝胶具有较高的机械性能，拉伸强度，伸长率和韧性分别达到0.49 MPa，2300％和4.9 MJ / m ^3。， 分别。在不添加其他添加剂和交联剂的情况下，水凝胶可充当原位和稳定Pd纳米粒子的模板。更重要的是，出色的生物相容性，可重塑性和抗疲劳性赋予了p（AM / DMLB）/ ILs-LPs水凝胶/ Pd以回收和再利用的性能，这可以赋予任何所需形状的样品，甚至使他们能够用作有希望的实际应用的催化剂。因此，将离子液体的乳胶球颗粒作为双重物理交联网络的唯一联合中心的创新设计策略可用于开发坚固，可拉伸的水凝胶材料，用于污水处理行业。