精品文档---下载后可任意编辑聚苯胺及聚苯胺/银复合材料的制备及电性能的讨论的开题报告Title:Preparation and Electrical Properties of Polyaniline and Polyaniline/Silver Composite MaterialsBackground:Polymers have gained significant attention in recent years due to their exceptional mechanical, electrical, and optical properties. Among different types of polymers, polyaniline (PANI) is considered one of the most promising conducting polymers, owing to its high conductivity, good environmental stability, and easy synthesis. However, the inherent brittleness and low mechanical strength of PANI limit its practical applications. To overcome these drawbacks, researchers have developed composite materials by incorporating PANI with other materials, such as metals, to enhance their properties. Among them, silver (Ag) is widely used because it has high thermal conductivity and good electrical conductivity compared to other metals.Objectives:The aim of this project is to synthesize PANI and PANI/Ag composite materials and investigate their electrical properties. Specifically, the objectives are:1. To synthesize PANI using chemical polymerization method2. To prepare PANI/Ag composite materials via in-situ chemical reduction method3. To characterize the structure, morphology, and electrical properties of PANI and PANI/Ag composite materials4. To compare the electrical properties of PANI and PANI/Ag composite materials and analyze the effect of Ag on the conductivity of the composite materialsMethodology:1. Synthesis of PANI: PANI will be synthesized via chemical polymerization method using aniline monomer, ammonium 精品文档---下载后可任意编辑persulfate as an oxidant, and hydrochloric acid as a doping agent.2. Preparation of PANI/Ag composite materials: PANI/Ag compo...
