MOLECULAR ACTUATOR OF GEL WITH CONTROL SYSTEM INVOLVING IONS AND SOLVENT TRANSFER

1. 以聚乙烯醇和2-丙烯酰胺-2-甲基丙烷磺酸为原料，进行了具有互穿网络致动膜凝胶的分子设计。阐明了膜的理化结构与物理性质（水化结构、溶胀）的关系。薄膜弯曲机理分析薄膜在电场作用下向阴极弯曲。从电场强度、离子基含量、外电解质溶液浓度和膜厚度等方面考察了膜的弯曲性能。为了研究弯曲过程中膜内的离子传递和应力分布，设计了一种5室的电解池。阐明了弯曲过程中离子的动力学和弯曲的力学机理。发现膜内离子的时空分布决定了膜内离子的弯曲模式，这是由donnan平衡引起的。基于多南平衡理论，对弯曲系统进行了快速响应优化。在快速弯曲系统的设计中，发现多南比是一个有效的参数。基于弹性理论建立了理论模型，并用模型井模拟了膜上的弯曲模式。

1. MOLECULAR DESIGN OF GEL FOR ACTUATORMEMBRANE GEL WITH INTERPENETRATE NETWORK WAS DEVELOPED FROM POLY (VINYL ALCOHOL) AND 2-ACRYLAMIDE-2-METHYLPROPANE SULFONIC ACID.THE RELATIONSHIP BETWEEN PHYSICOCHEMICAL STRUCTURE OF THE MEMBRANE AND PHYSICAL PROPERTY (HYDRATION STRUCTURE,SWELLING) WERE ELUCIDATED.2. ANALYSIS OF BENDING MECHANISM IN THE MEMBRANETHE MEMBRANE BENT TOWARD CATHODE IN AN ELECTRIC FIELD.THE BENDING PROPERTY OF THE MEMBRANE WAS INVESTIGATED IN TERMS OF FIELD INTENSITY,IONIC GROUP CONTENT,CONCENTRATION OF OUTER ELECTROLYTE SOLUTION AND MEMBRANE THICKNESS.A ELECTROLYTIC CELL WITH 5 COMPARTMENTS WAS NEWLY DEVELOPED TO ELUCIDATE BOTH IONIC TRANSFER AND STRESS DISTRIBUTION INSIDE THE MEMBRANE IN THE BENDING PROCESS.THE DYNAMICS OF IONS AND THE MECHANICAL MECHANISM OF BENDING IN THE BENDING PROCESS WERE CLARIFIED.IT WAS FOUND THAT THE BENDING PATTERN WAS DETERMINED BY THE SPATIOTEMPORAL DISTRIBUTION OF IONS INSIDE THE MEMBRANE,WHICH IS INDUCED BY DONNAN EQUILIBRIUM.3. OPTIMIZATION OF THE BENDING SYSTEM FOR QUICK RESPONSEOPTIMIZATION OF THE SYSTEM FOR QUICK BENDING WAS PERFORMED BASED ON THE DONNAN EQUILIBRIUM THEORY.THE DONNAN RATIO WAS FOUND TO BE A EFFECTIVE PARAMETER IN THE DESIGN OF THE SYSTEM FOR QUICK BENDING.THEORETICAL MODEL WAS DEVELOPED BASED ON THE ELASTIC THEORY AND THE BENDING PATTERN ON TEH MEMBRANE WAS SIMULATED BY THE MODEL FAIRY WELL.