2012
DOI: 10.1021/ma3008652
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Microporous Cyanate Resins: Synthesis, Porous Structure, and Correlations with Gas and Vapor Adsorptions

Abstract: Three silicon and nitrogen-centered cyanate monomers tetrakis(4-cyanatophenyl)silane, tetrakis(4-cyanatobiphenyl)silane, and tris(4-cyanatobiphenyl)amine were designed and synthesized, which were then polymerized via thermal cyclotrimerization reaction to create highly porous cyanate resin networks with systematically varied nodes and linking struts. The chemical structures of monomers and polymers were confirmed by 1 H NMR, FTIR, solid-state 13 C CP/MAS NMR spectra, and elemental analysis. The products are am… Show more

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Cited by 100 publications
(90 citation statements)
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“…As shown in Figure 1 and Table 1, NAPOP-1 comprises the smallest micropore with a size less than 3.9 Å, which is beneficial to the selective capture of CO 2 because of its small kinetic diameter. 32 NAPOP-4 comprises the micropore larger than 10 Å. In addition, macropores with a size varying from 20 to 200 Å were observed for all NAPOPs, with a notable pore volume contribution.…”
Section: Gas Adsorption Measurementsmentioning
confidence: 92%
See 1 more Smart Citation
“…As shown in Figure 1 and Table 1, NAPOP-1 comprises the smallest micropore with a size less than 3.9 Å, which is beneficial to the selective capture of CO 2 because of its small kinetic diameter. 32 NAPOP-4 comprises the micropore larger than 10 Å. In addition, macropores with a size varying from 20 to 200 Å were observed for all NAPOPs, with a notable pore volume contribution.…”
Section: Gas Adsorption Measurementsmentioning
confidence: 92%
“…39,40 NAPOPs have large N content and small pore size and thus are preferred for CO 2 adsorption owing to strong dipole-quadruple interaction as well as size selectivity. 32,40 The adsorption selectivity of NAPOPs were evaluated at 273 K toward an imaginary mixture of CO 2 and N 2 with a molar ratio of 15:85, using the ideal adsorbed solution theory (IAST) 41 based on the single adsorption data. As shown in Figure 3(a), NAPOPs display different CO 2 /N 2 adsorption selectivity in an increasing order of NAPOP-2<NAPOP-4<NAPOP-3<NAPOP-1.…”
Section: Gas Adsorption Measurementsmentioning
confidence: 99%
“…[15] Moreover,t he apparent rise at high relative pressure suggests their macroporosity as aresult of the loose stacking of nanoparticles.The Brunauer-Emmett-Teller (BET) surface areas are evaluated to be 540, 510, 600, and 610 m 2 g À1 for CoPc-CMP,NiPc-CMP, CuPc-CMP,and ZnPc-CMP,respectively (see Figure S7 in the Supporting Information). These values are comparable with other phthalocyanine-based porous organic polymers, [16] such as Pc-PBBAC OF (PBBA = phenylenebis(boronic acid), 450 m 2 g À1 ), [16a] NiPc-COF (624 m 2 g À1 ), [16b] and CoPc20 network-PIM (PIM = polymer of intrinsic microporosity, 610 m 2 g À1 ).…”
Section: Methodsmentioning
confidence: 99%
“…Cyanate resins exhibit good thermals tability, permittivity,a nd mechanical properties,b ut they are knownf or their low moisture adsorption characteristics. Wang et al [57] transformed cyanate resins into triazine-containing polymers throught hermalcyclotrimerization reactions. Each of the nitrile functionalized monomers-namely,t etrakis(4-cyanatophenyl) silane, tetrakis(4-cyanatobiphenyl) silane, and tris(4-cyanatobiphenyl) amine-was subjected to thermalc yclotrimerization by using nonylphenol as ac atalystt oo btain crosslinked cyanate resin polymers (CE-1, CE-2, CE-3).…”
Section: Covalent Triazinef Ramework (Ctfs)mentioning
confidence: 99%