基于主-客体包合物的刺激响应超分子多糖凝胶及其在光化学传感器中的应用

(1) 设计合成以接枝直链淀粉衍生物的纤维素作为主体高分子、接枝硫醚齐聚物、羟基脂肪酸齐聚物、四氢呋喃齐聚物等的纤维素作为客体高分子、主客体包合物作为交联结构的全新的金属离子和有机物刺激响应超分子多糖凝胶；研究丰富刺激响应超分子凝胶结构和理论，也为直链淀粉主体分子应用于光化学传感器和其他主客体化学领域打下坚实的理论基础。(2) 将刺激响应超分子凝胶的结构特点和理论以及刺激响应超分子多糖凝胶应用于研制响应聚合物胶体晶体阵列，研制出对特定金属离子或有机物的刺激具有高灵敏度、高响应速率、明显颜色变化的多糖基响应聚合物胶体晶体阵列,发展响应聚合物胶体晶体阵列的新的制备原理和刺激响应理论。(3) 通过刺激响应超分子凝胶和响应聚合物光子晶体的耦合，把直链淀粉包合物的识别信号转化为裸眼可视的颜色变化，发展一种价廉、制备简单、裸眼可视、方便实用的光化学传感器，重点用于检测水体中的金属离子以及有机污染物。

①This project aims at designing and synthesizing metal ions-responsive or organic compounds-responsive supramolecular polysaccharide hydrogels using celluloses which grafted with amylose derivatives as host polymers, celluloses which grafted with thioether oligomer, hydroxy-containing fatty acid oligomer or tetrahydrofuran oligomer as guest polymers, and host-guest inclusion complexes as cross-linking structures. By this project, the structure and theory of stimuli-responsive supramolecular hydrogels will be enriched. And the study will provide solid theory basis for applying host-guest molecules based on amylase to optical chemsensor and other host-guest chemistry fields.② The structural characteristics and theory of stimuli-responsive supramolecular hydrogels and the stimuli-responsive supramolecular polysaccharide hydrogels will be applied to developing responsive polymer crystalline colloidal arrays，and polysaccharide-based responsive polymer crystalline colloidal arrays with high sensitivity, high responsive rate, obvious color change to stimulus of special ion metal and organic compounds will be prepared and novel preparation principle and stimuli-responsive theory will be developed.③ Through coupling of stimuli-responsive supramolecular hydrogels with responsive polymer photonic crystal, the recognition signal of amylose inclusion complexes can be transformed into color change, and a kind of optical chemosensors with low-cost, simple preparative, naked-eye detective and easy and feasible applicable properties for monitoring metal ion and organic pollutants in water will be developed.