带电温敏单体及其聚合物复杂体系结构性能研究

Ionic liquid is a kind of wholly-charged molecules which are entirely composed of cation and anion. By adjusting the balance of hydrophilicity and hydrophobicity between cations and anions, LCST-type Ionic liquid monomers and their corresponding polymers can be obtained. In this project, different kinds of characterization methods such as infrared spectroscopy/ NMR in combination with advanced analytical tools like two dimensional correlation spectroscopy, perturbation correlated moving window will be used to carry out the following studies:.1).The similarity and difference of the mechanism in the phase separation of the wholly-charged thermoresponsive monomer and corresponding polymer aqueous solution.2).The cooperation and competition behavior in the complex system composed of wholly-charged thermoresponsive monomer/polymer and different conventional LCST type polymers.3).The practical application of wholly-charged thermoresponsive monomer/polymer in functional membranes

离子液体是一类由阳离子和阴离子组成的结构“全带电”分子。通过调节阴阳离子间亲水、疏水性能的平衡，可以得到具有LCST相行为的离子液体单体及其聚合物。本项目将通过红外光谱、核磁共振等表征方法结合二维相关光谱、扰动关联移动窗等先进分析手段， 系统开展下列研究：.1）“全带电”温敏单体及其聚合物水溶液相变行为之异同.2）“全带电”温敏单体及其聚合物与常规温敏聚合物复杂体系中两者的协同和竞争关系.3）“全带电”温敏单体及其聚合物在聚合物功能膜的应用

在智能皮肤材料的研究中，基于水凝胶或离子弹性体的离子皮肤在高透明度、本征可拉伸、类生物组织的离子传导、多模式感知功能、可回收利用等方面已经显示出了巨大优势。此前，项目的支持下，本课题组报道了通过调节多重分子间非共价相互作用，实现了仿生离子皮肤的力学性质的广谱可调（Adv. Mater., 2017, 29, 1700321; Nat. Commun.2018, 9, 1134）；通过3D打印微结构，提高了仿生离子皮肤的感知灵敏度 (Mater. Horiz., 2017, 4, 694-700)；通过调节水凝胶的亲疏水相互作用，实现了仿生离子皮肤光学-电学的双重响应（ACS Nano, 2018, 12, 12, 12860-12868）；通过基于电阻、电容、电压等多模式信号的分辨，实现了对环境应力、应变、温度、湿度乃至不明液体的同步识别与感知 (Nat. Commun. 2019, 10, 3429; Mater. Horiz., 2019, 6, 538-545)）。但是目前的研究很少关注到仿生皮肤与周围环境和皮肤组织之间的界面相互作用。特别地，基于传统合成水凝胶的离子皮肤在体外往往容易脱水，并且缺乏与生物组织的物质传输通道。本项目的研究取得了丰富的成果， 为后面申报的重点项目做了充分的准备。