Advances in porous organic polymers: syntheses, structures, and diverse applications

Mohamed, Mohamed Gamal; EL‐Mahdy, Ahmed F. M.; Kotp, Mohammed G.; Kuo, Shiao‐Wei

doi:10.1039/d1ma00771h

Cited by 183 publications

(135 citation statements)

References 161 publications

(140 reference statements)

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“…We also recorded PL spectra to measure the fluorescence properties of TAPP, Por-BZ, and the Por-BZ/Ni and Por-BZ/Zn complexes dissolved in several kinds of solvents ( Figure 9 ). Fluorescent materials with highly π-conjugated systems typically exhibit strong luminescence in dilute solution; their fluorescence emissions are typical quenched in solutions of high concentrations or in the solid state, a phenomenon known as “aggregation-caused quenching” (ACQ), a result of strong face-to-face π-stacking [ 57 , 58 , 59 , 60 , 61 ]. Therefore, we investigated the effect of concentration on the fluorescence emissions of TAPP and Por-BZ in DMF upon excitation at a wavelength of 360 nm.…”

Section: Resultsmentioning

confidence: 99%

Metal Complexes of the Porphyrin-Functionalized Polybenzoxazine

et al. 2022

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New porphyrin-functionalized benzoxazine (Por-BZ) in high purity and yield was synthesized in this study based on 1H and 13C NMR and FTIR spectroscopic analyses through the reduction of Schiff base formed from tetrakis(4-aminophenyl)porphyrin (TAPP) and salicylaldehyde and the subsequent reaction with CH2O. Thermal properties of the product formed through ring-opening polymerization (ROP) of Por-BZ were measured using DSC, TGA and FTIR spectroscopy. Because of the rigid structure of the porphyrin moiety appended to the benzoxazine unit, the temperature required for ROP (314 °C) was higher than the typical Pa-type benzoxazine monomer (ca. 260 °C); furthermore, poly(Por-BZ) possessed a high thermal decomposition temperature (Td10 = 478 °C) and char yield (66 wt%) after thermal polymerization at 240 °C. An investigation of the thermal and luminescence properties of metal–porphyrin complexes revealed that the insertion of Ni and Zn ions decreased the thermal ROP temperatures of the Por-BZ/Ni and Por-BZ/Zn complexes significantly, to 241 and 231 °C, respectively. The metal ions acted as the effective promoter and catalyst for the thermal polymerization of the Por-BZ monomer, and also improved the thermal stabilities after thermal polymerization.

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Section: Resultsmentioning

confidence: 99%

Metal Complexes of the Porphyrin-Functionalized Polybenzoxazine

et al. 2022

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“…With this in consideration, an ideal electrode material should meet several characteristics, such as having ideal redox-active sites, high specific surface area (SSA), good conductivity, suitable pore width, and good chemical and thermal stability, as well as being eco-friendly in nature. Extensive research on CMPs reveals that the introduction of heteroatoms (N, B, S, P) in the CMPs can be used to obtain materials with tunable pore size and PC [ 16 , 17 , 18 , 19 , 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Ultrastable Conjugated Microporous Polymers Containing Benzobisthiadiazole and Pyrene Building Blocks for Energy Storage Applications

et al. 2022

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In recent years, conjugated microporous polymers (CMPs) have become important precursors for environmental and energy applications, compared with inorganic electrode materials, due to their ease of preparation, facile charge storage process, π-conjugated structures, relatively high thermal and chemical stability, abundance in nature, and high surface areas. Therefore, in this study, we designed and prepared new benzobisthiadiazole (BBT)-linked CMPs (BBT–CMPs) using a simple Sonogashira couplings reaction by reaction of 4,8-dibromobenzo(1,2-c;4,5-c′)bis(1,2,5)thiadiazole (BBT–Br2) with ethynyl derivatives of triphenylamine (TPA-T), pyrene (Py-T), and tetraphenylethene (TPE-T), respectively, to afford TPA–BBT–CMP, Py–BBT–CMP, and TPE–BBT–CMP. The chemical structure and properties of BBT–CMPs such as surface areas, pore size, surface morphologies, and thermal stability using different measurements were discussed in detail. Among the studied BBT–CMPs, we revealed that TPE–BBT–CMP displayed high degradation temperature, up to 340 °C, with high char yield and regular, aggregated sphere based on thermogravimetric analysis (TGA) and scanning electron microscopy (SEM), respectively. Furthermore, the Py–BBT–CMP as organic electrode showed an outstanding specific capacitance of 228 F g–1 and superior capacitance stability of 93.2% (over 2000 cycles). Based on theoretical results, an important role of BBT–CMPs, due to their electronic structure, was revealed to be enhancing the charge storage. Furthermore, all three CMP polymers featured a high conjugation system, leading to improved electron conduction and small bandgaps.

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“…19 Kuo and coworkers recently employed the selfassembly of polypeptide diblock copolymers for the fabrication of high capacitance microporous carbon. [20][21][22] Our group is interested in studying the self-assembly of single amino acids, [23][24][25][26] peptides, [27][28][29][30][31][32] and heterocyclic compounds. [33][34][35] Hence, motivated by our previous research interest wherein we illustrated the self-assembly of single amino acids, [23][24][25][26] we were curious to study the self-assembled structure formation by modified single amino acids as well.…”

Section: Introductionmentioning

confidence: 99%

Controlled aggregation properties of single amino acids modified with protecting groups

et al. 2022

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Advances in porous organic polymers: syntheses, structures, and diverse applications

Abstract: Porous organic polymers (POPs) are organic macromolecules that are considered emerging materials because of their high specific surface areas, tunable porosities, low densities, high chemical and thermal stabilities, variable compositions,...

Cited by 183 publications

References 161 publications

Metal Complexes of the Porphyrin-Functionalized Polybenzoxazine

Metal Complexes of the Porphyrin-Functionalized Polybenzoxazine

Ultrastable Conjugated Microporous Polymers Containing Benzobisthiadiazole and Pyrene Building Blocks for Energy Storage Applications

Controlled aggregation properties of single amino acids modified with protecting groups

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