A novel organic-inorganic hybrid material with the core-shell framework was prepared by modifying the poly(vinylsulfonic acid, sodium salt) (PSS) on vinyl functionalized silica nanoparticles (VSNs) via the free radical polymerization. SNs with different contents of PSS were prepared and the structures were carefully characterized. The hybrid material could enhance the durability of PSS under high humidity environment. Meanwhile, the SNs skeleton provides interstitial channels in the [email protected] films, which are available for water molecules transport. The PSS coated SNs ([email protected]) films were formed by drop-coating and their sensing properties were investigated. The impedance of the optimal humidity sensor changed more than four orders of magnitude over the relative humidity range of 33–95%, with good linearity under semi-logarithm scale (R² = 0.950) and a small humidity hysteresis of 2% RH. The obtained sensor also showed rapid response to humidity change (the response and recovery time were 2 and 65 s, respectively). Finally, the resultant sensor was explored for respiratory rate monitoring.

通过自由基聚合改性乙烯基官能化二氧化硅纳米粒子（VSNs）上的聚（乙烯基磺酸钠盐）（PSS），制备了具有核-壳骨架的新型有机-无机杂化材料。制备了不同PSS含量的SN，并仔细表征了结构。这种杂化材料可以提高PSS在高湿度环境下的耐久性。同时，SN的骨架在[受电子邮件保护的]薄膜中提供了间隙通道，可用于水分子的运输。通过滴涂形成PSS涂层的SNs（[受电子邮件保护]）膜，并研究其传感性能。最佳湿度传感器的阻抗在33–95％的相对湿度范围内变化了四个以上的数量级，²  = 0.950）和2％RH的小湿度滞后。获得的传感器还显示出对湿度变化的快速响应（响应和恢复时间分别为2和65 s）。最后，对最终的传感器进行了呼吸速率监测。