The properties and structure of PSPIs, such as UV absorption, thermal properties, electric and adhesion properties, and moisture absorption, were characterized by UV, DSC, TMA, dielectric constant detector and so on. 通过IR、DSC、元素分析、UV、介电分析方法对聚酰亚胺的结构、感光特性、热性能、电性能、粘附性、吸湿性能等进行了表征。