Multifunctional Polyhedral Oligomeric Silsesquioxane (POSS) Based Hybrid Porous Materials for CO2 Uptake and Iodine Adsorption

Abstract

In this study, two different types of hybrid porous organic polymers (POPs), polyhedral oligomeric silsesquioxane tetraphenylpyrazine (POSS-TPP) and tetraphenylethene (POSS-TPE), were successfully synthesized through the Friedel−Crafts polymerization of tetraphenylpyrazine (TPP) and tetraphenylethene (TPE), respectively, with octavinylsilsesquioxane (OVS) as node building blocks, in the presence of anhydrous FeCl3 as a catalyst and 1,2-dichloroethane at 60 °C. Based on N2 adsorption and thermogravimetric analyses, the resulting hybrid porous materials displayed high surface areas (270 m2/g for POSS-TPP and 741 m2/g for POSS-TPE) and outstanding thermal stabilities. Furthermore, as-prepared POSS-TPP exhibited a high carbon dioxide capacity (1.63 mmol/g at 298 K and 2.88 mmol/g at 273 K) with an excellent high adsorption capacity for iodine, reaching up to 363 mg/g, compared with the POSS-TPE (309 mg/g).

Enhanced thermal and mechanical properties of hydrophobic graphite-embedded polydimethylsiloxane composite

“…The conductive network in the matrix defines the conduction property of polymer composites [19], [20]. Further, zero-dimensional (0-D) particles such as metal [21], carbon particles [22], [23] etc.…”

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

“…The as-prepared POSS-TPE had a high surface area (741 m 2 g -1 ) and good thermal stability, as determined using N 2 adsorption/desorption and TGA, respectively. 109 The Alameddine group prepared five CMP materials through Cu-catalyzed [4+2] benzannulations of 2,5-bis(phenylethynyl)tetraphthaladehyde with a series of 1,4-diarylethynyltriptycene derivatives. 110 The resultant CMPs 1-5 were microporous, with high BET surface areas (794 m 2 g -1 ) and pore volumes (0.63 cm -3 g -1 ), and displayed good I 2 uptake (166 wt%).…”

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

“…CMPs are porous compounds that are constructed from a covalent connection of π-conjugated building units that extended along with the skeleton, providing them 3D microporosity networks and especially high surface area at times [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ]. They can be easily synthesized by using numerous C–C coupling reactions such as Yamamoto, Sonogashira, and Suzuki coupling, and also oxidative polymerization [ 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 ] which are characterized by a high degree of polymerization and crosslinking densities, as well as facilities the incorporation of different moieties [ 45 , 46 , 47 , 48 , 49 , 50 ].…”