某些预想的概念验证反应虽可能产生具有新功能或新应用潜力的材料，但最终常被证明是不可实现的或从商业角度上是不可行的。为了在溶剂环境中探索未知反应的反应条件，科研人员已付出了大量的努力，也浪费了大量的精力。因为人们普遍相信通过将反应物溶解在溶剂中，可以提高反应物的活性，从而促进反应。本研究发现了一个反常现象：在不同溶剂环境下，1,3,5-三（氯甲基）-2,4,6-三甲基苯与三聚氰胺的共聚反应都是无法实现的，然而利用无溶剂法却可成功地实现该反应。通过第一性原理计算和分子动力学模拟，证明了溶剂反应不具备的两个决定性因素，即由副产物的及时释放所推动的反应平衡和活化单体分子在固相中的受限热运动却可基于无溶剂法实现。由于具有较高的芳香性和氮杂环含量，由无溶剂法得到的共聚物表现出良好的应用潜力，可作为制备氮掺杂多孔碳的前驱体，使氮掺杂多孔碳具有令人满意的碳产率、理想的残氮含量、理想的结构特性，与最近报道的其他代表性同类吸附剂相比，在二氧化碳捕获能力方面展现出竞争潜力。

It is common that a proof-of-concept of a desired reaction, which might generate materials with new functions or application potential, is eventually proved impracticable or commercially unfeasible. Considerable efforts have been made but wasted in searching for unknown reaction conditions in solvent environments because it was believed that the activity of reactants can be enhanced to facilitate reactions by dissolving them in solvents. However, an abnormal case was discovered in this study. A desired copolymerization reaction between 1,3,5-tris(chloromethyl)-2,4,6-trimethylbenzene and melamine was confirmed to be impracticable under various solvent conditions; however, it was successfully implemented using a solvent-free method. Using first-principle calculations and molecular dynamics simulations, two decisive factors that the reaction in solvents cannot possess, namely the reaction equilibrium being pushed by the timely release of by-products and the confined thermal motions of the activated monomer molecules in the solid phase, were demonstrated to make the copolymerization successful in the solvent-free method. Owing to the high aromaticity and azacyclo-content, the as-synthetic copolymer exhibited good application potential as a precursor to fabricate N-doped porous carbons with satisfactory carbon yields, ideal N contents, desired textural properties, and competitive CO₂ capture abilities compared to other representative counterparts reported recently.