| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1329885 | Journal of Solid State Chemistry | 2014 | 4 Pages |
•Topological-directed design and synthesis two conjugated porous polymers.•Two thiophene-based CMPs show different aggregated morphologies.•They exhibit similar porosity structure and different CO2 uptake capacity.
Two novel thiophene-based conjugated networks CMPs-TTT and CMPs-DTBT were designed and prepared with different steric configuration building blocks by FeCl3 oxidative coupling polymerization. UV–vis spectra, FE-SEM and TEM images showed CMPs-TTT and CMPs-DTBT having the different aggregated morphologies. After porous analysis and gas adsorption test, the result showed CO2 uptake capacity of CMPs-DTBT with amorphous aggregation model is 2.88 times and 2.66 times greater than that of CMPs-TTT with large lamellar structure model at 273 K and 298 K (1.0 bar), respectively. As a result, this communication proved that change the topological structure of the polymer can influence the CO2 adsorption capacity significantly.
Graphical abstractTwo thiophene-based conjugated networks were prepared with different steric configuration building blocks, and they show various CO2 uptake capacity and sorption isosteric enthalpies, although they have identical chemical constitution.Figure optionsDownload full-size imageDownload as PowerPoint slide
