Covalent organic framework (COF) is an emerging class of porous materials constructed by covalently linked building blocks including reactive organic functional groups. COFs are characterized by their ordered structures, high stability, and structural diversity. Covalent triazine framework (CTF) is a subclass of COFs, which consists of triazine building units. CTFs have attracted broad interests because of the large conjugated system with high nitrogen contents. Perylene derivative is one of the superior building units for practical applications of CTFs. Thus, in this work, we explored which synthetic strategy is appropriate for constructing the high-performance perylene based CTF by comparing two synthetic methods. The perylene-based triazine polyimides were synthesized by two different methods. The i-PTPI was synthesized by the imidization reaction which is one of the polycondensation reactions. The t-PTPI was synthesized by the acid-catalyzed trimerization reaction. The resultants showed significant differences in properties such as chemical composition, thermal stability, crystallinity and porosity even they consisted of the same building units because of these different synthesis routes. Consequently, this study proved that imidization method was more suitable to construct highly crystalline, porous and stable perylene-based CTF than the acid-catalyzed trimerization method.

共价有机骨架（COF）是一类新兴的多孔材料，由包括反应性有机官能团的共价连接结构单元构成。COF的特征在于其有序的结构，高稳定性和结构多样性。共价三嗪框架（CTF）是COF的子类，由三嗪建筑单元组成。CTF由于具有高氮含量的大型共轭体系而引起了广泛的兴趣。ylene衍生物是用于CTF实际应用的高级建筑单元之一。因此，在这项工作中，我们通过比较两种合成方法，探索了哪种合成策略适合构建高性能基于per的CTF。two基三嗪聚酰亚胺是通过两种不同的方法合成的。在我-PTPI通过作为缩聚反应之一的酰亚胺化反应合成。所述吨-PTPI由酸催化的三聚反应来合成。由于它们具有不同的合成路线，即使它们由相同的结构单元组成，所得物在诸如化学组成，热稳定性，结晶度和孔隙率等性质上也表现出显着差异。因此，本研究证明了酰亚胺化方法比酸催化的三聚方法更适合于构建高度结晶，多孔且稳定的per基CTF。