Construction of bimodal silsesquioxane-based porous materials from triphenylphosphine or triphenylphosphine oxide and their size-selective absorption for dye molecules

Abstract

Two novel hybrid porous polymers were easily prepared by the Friedel-Crafts reaction of octavinylsilsesquioxane with triphenylphosphine and triphenylphosphine oxide, respectively. They possessed unique bimodal pores with uniform micropores and mesopores centered at 1.5 nm and 3.7 nm, respectively, high surface areas up to 1105 m 2 g À1 , high thermal stability and an excellent sizeselective adsorption for dyes. These hybrid porous polymers are very promising in dye separation, water purification and treatment.

Synthesis and Characterization of Functional Triphenylphosphine‐Containing Microporous Organic Polymers for Gas Storage and Separation

“…The pore parameters such as BET surface area, pore size, total pore volume, and micropore volume are summarized in Table 1 . The polymer networks exhibit moderate BET apparent surface area ranging from 684 to 883 m 2 g −1 , which are comparable to the reported triphenylphosphine‐containing MOPs . TBPPS‐based polymer networks exhibit higher BET surface area than their analogous polymer functionalized by triphenylphosphine oxide moieties.…”

“…Notably, phosphorus, as the node of the frameworks for porous materials, has been widely used in heterogeneous catalysis and CCS . Several phosphorus‐containing porous materials have been successfully achieved by different methods, such as palladium‐catalyzed Heck cross‐coupling reaction, Yamamoto reaction, Friedel−Crafts reaction, and Sonogashira−Hagihara coupling reaction .…”

“…These polymer networks with large Brunauer−Emmett−Teller (BET) surface area could prevent ligand loss and allow direct immobilization of transition metal on the polymer backbone. In addition, the versatile chemical reactivity of phosphorus and rational selection of suitable rigid building blocks with different geometries might also offer great opportunities in the construction of MOPs . Several novel functional triphenylphosphine or thienylphosphine‐based MOPs were successfully prepared and exhibited good CO 2 capture capacity …”

Porous Polymers Derived from Octavinylsilsesquioxane by Cationic Polymerization

“…CHPP‐1 and Epo‐CHPP‐1 display CO 2 uptake of 2.78 wt% (0.63 mmol g −1 ) and 2.75 wt% (0.62 mmol g −1 ). Their CO 2 adsorption was very close, indicating that in addition to pore structure and surface area, surface chemistry also plays an important role in the adsorption of CO 2 …”

Silsesquioxane-based luminescent PMMA nanocomposites

“…7a)), it was observed that both PMMA and PMS-Tb were amorphous and a broader amorphous peak at about 2θ = 15〫was observed, which was ascribed to the consequence of signal overlap of the hybrid complexs and pure PMMA; the characteristic Si-O-Si peak at 2θ = 22〫was unconspicuous. 41 These results means that microphase separation did not occur in these hybrid nanocomposites. 33 In addition, no maxima was observed in SAXS patterns (Fig.…”