关键词: 透明聚酰胺, 结构, 机械性能, 聚合物加工, 应用, 混合, 透明聚酰胺, 结构, 力学性能, 聚合物加工, 应用, 混合

Abstract: This paper describes the structural elements of preparing transparent polyamides，in which the capability to inhibit crystallization behavior and crystal size should be crucial to their transmittance. We classify the transparent polyamides into aliphatic polyamides and aromatic polyamides，and further classify these aliphatic transparent polyamides into alicyclic，pendent-alicyclic and linear chain aliphatic copolymer. Similarly，the aromatic transparent polyamides are also classified into three types as non-pendent group，pendent group and complex structure according to chain characteristics. The optical，mechanical，thermal and chemical resistance properties of related polyamides are reviewed，and the processing conditions and applications of these materials are also presented. Transparent aliphatic polyamides usually have excellent weather resistance and UV resistance while transparent aromatic polyamides usually have strong heat resistance and mechanical properties. The study of transparent polyamides in the future will increasingly focus on biodegradability，common solvent solubility and high heat resistance，etc.

Key words: transparent polyamides, structure, mechanical properties, polymer processing, application, blend, transparent polyamides, structure, mechanical properties, polymer processing, application, blend