Pore structure of water‐wettable hydrophobic resins based on divinylbenzene and methyl acrylate

Abstract

ABSTRACT:Hydrophobic, but water-wettable porous resins based on divinylbenzene (DVB) and methyl acrylate (MA) were prepared with a wide range of pore structures by suspension copolymerization under different conditions. By using purified DVB (98.8%), the specific surface area for the resulting MA/DVB resins could reach high values at high DVB levels, while these resins are wettable by direct contact with water. An increased content of MA significantly increases the porosity of the resins, whereas the solvating power of the porogen affects both pore structure and waterwettability of the MA/DVB resins profoundly. Treating these MA/DVB resins with ferric chloride in the presence of dichloroethane gives products with larger surface areas and an enhanced water-wettability.

Preparation and characterization of polar polymeric adsorbents with high surface area for the removal of phenol from water

“…However, those phenomena are not obvious in the precursor resin PDM-40, which can be attributed to the fact that there are almost no pendant vinyl groups onto PDM-40. Similar results were reported by Nyhus et al [41] and Yan and co-authors [42]. Resins EGDMAco-DVB were prepared by the copolymerization of EGDMA and DVB, and some typical properties are presented in Table 1.…”

Immobilized Pd metal‐complex on polymeric resin with high surface areas for recyclable catalyst: Effect of the immobilization method on nature of palladium species

“…The literature suggests that the resin synthesis must be in a three-neck polymerization reactor. 29,51 The synthesis involved 60, 29, 10, and 1 wt% of DVB, MA, AS (or PdAS), and AIBN:…”

Rhodium(i) diphenylphosphine complexes supported on porous organic polymers as efficient and recyclable catalysts for alkene hydrogenation

“…Porous polymer-resins were synthesized via suspension polymerization using a modied procedure reported in detail by Wei et al 14 The co-monomers (MA and x-N(CH 2 CH 2 Cl) 2 where x: Alk or Acy) were rst mixed well with the porogen (toluene) and DVB as crosslinker, in mass ratio 2 : 39 : 60, to form an organic phase in which the initiator, AIBN, was added (1 wt% monomers-based). The organic phase mixture was then added, at a 1 : 3 ratio (v/v), to the aqueous phase containing 0.2% hydroxyethyl cellulose and 20% NaCl, and the polymerization was allowed to proceed at 70 C and 85-90 C for 14 and 4 h, respectively.…”

“…5 In recent years, suspension polymerization is used to produce crosslinked-polymers with a controllable pore structure and a high surface area compared to Merrield resins. [12][13][14] These materials contain well-developed micropores and mesopores, therefore should decrease the diffusion limitations and signicantly improve the accessibility to the reactive pending groups and produce highly dispersed catalysts. [15][16][17] In this way, Canali et al 18 have reported a porous polystyrene/ polymethacrylate-based resin with supported Jacobsen's chiral Mn-saliciden-ethylenediamine complexes for alkene enantioselective oxidation.…”