Graduate School of Environmental Studies, Tohoku University, 6-6-07 Aoba, Aramaki-aza, Aoba, Sendai 980-8579, Japan.
Anal Sci. 2021 Jan 10;37(1):145-157. doi: 10.2116/analsci.20SAR04. Epub 2020 Oct 23.
Pyrolysis is considered to be a promising method for polymer characterization (in the field of analytical pyrolysis) and for chemical feedstock recovery from plastic wastes (in the field of applied pyrolysis) because it can decompose any polymeric material into smaller molecules by applying heat alone in an inert atmosphere. Pyrolysis-gas chromatography (Py-GC) involves pyrolyzing polymeric materials in a micropyrolyzer and a subsequent direct GC analysis of pyrolyzates. Py-GC has immense potential for applications in the fields of both analytical and applied pyrolysis, as it allows for rapid and accurate analysis of pyrolyzates. This is beneficial for elucidating microstructure and composition of polymers and for a rapid screening of pyrolysis conditions for designing feedstock recycling processes. In this review, we examined the latest research trends in Py-GC applications for polymer characterization, analysis of plastics in the environment, and chemical feedstock recovery from plastics.
热解被认为是一种有前途的聚合物特性分析方法（在分析热解领域），也是从塑料废物中回收化工原料的方法（在应用热解领域），因为它可以在惰性气氛中仅通过加热将任何聚合材料分解成更小的分子。热解-气相色谱（Py-GC）涉及在微热解器中热解聚合材料，以及随后对热解产物进行直接 GC 分析。Py-GC 在分析和应用热解领域都有巨大的应用潜力，因为它可以快速准确地分析热解产物。这对于阐明聚合物的微观结构和组成以及快速筛选设计原料回收工艺的热解条件都非常有益。在本综述中，我们研究了 Py-GC 在聚合物特性分析、环境中塑料分析和塑料中化学原料回收方面的最新研究趋势。
