Epoxidized natural rubber (ENR) grafted Poly(N-isopropylacrylamide) (ENR-g-PNIPAM) hydrogel was exploited by classic free radical polymerization, which exhibited practical potential for temperature-sensitive material. Free ENR was introduced in the ENR-g-PNIPAM hydrogel to construct a secondary network that will form chain entanglement and further improve the chemical and physical properties of the hydrogel. The renewable ENR and a facile fabrication process make large-scale production of the ENR-g-PNIPAM hydrogel possible and prompt its commercial value. The content of ENR was systematically varied and studied to ensure optimal ratio. Among various compositions examined, the 7:3 weight ratio of ENR/NIPAM in the hydrogel(70ENR) exhibited excellent properties. Additionally, a simple scheme was also designed for fabricating multifunctional ENR-g-PNIPAM/polypyrrole/cotton (EPPC) composites with simultaneous adsorption of Cr (VI) and electrothermal conversion. The EPPC composites demonstrated good adsorption capacity with 127 mg/g at pH = 2 in an aqueous solution containing 100 mg/L Cr (VI), while also functioning as a thermistor with enhanced sensitivity. The adsorption data can be better described by the pseudo-second-order kinetic model and the Freundlich isotherm model, indicating that the adsorption was a chemical and multilayer. Benefiting from these research results, enabling the synthesized hydrogel a crucial role in terms of Cr (VI) treatment and thermal sensor.

通过经典的自由基聚合技术开发了环氧化天然橡胶（ENR）接枝聚（N-异丙基丙烯酰胺）（ENR-g-PNIPAM）水凝胶，该水凝胶表现出作为温度敏感材料的实际潜力。 ENR-g-PNIPAM水凝胶中引入游离ENR，构建二级网络，形成链缠结，进一步改善水凝胶的化学和物理性能。可再生的 ENR 和简便的制造工艺使得 ENR-g-PNIPAM 水凝胶的大规模生产成为可能，并提升了其商业价值。 ENR 的含量被系统地改变和研究以确保最佳比例。在所检测的各种组合物中，水凝胶中 ENR/NIPAM 重量比为 7:3 (70ENR) 表现出优异的性能。此外，还设计了一种简单的方案来制备同时吸附 Cr (VI) 和电热转换的多功能 ENR-g-PNIPAM/聚吡咯/棉 (EPPC) 复合材料。 EPPC 复合材料在含有 100 mg/L Cr (VI) 的水溶液中在 pH = 2 时表现出良好的吸附能力，吸附能力为 127 mg/g，同时还可以用作具有增强灵敏度的热敏电阻。准二级动力学模型和Freundlich等温线模型可以更好地描述吸附数据，表明吸附是化学的、多层的。受益于这些研究成果，使得合成的水凝胶在 Cr (VI) 处理和热传感器方面发挥着至关重要的作用。