title: Preparation and characterization of polar polymeric adsorbents with high surface area for the removal of phenol from water.
abstract: Preparation of methyl methacrylate (MMA)/divinylbenzene (DVB) and ethylene glycol dimethacrylate (EGDMA)/DVB copolymers via suspension polymerization yielded precursors which possess residual vinyl groups. Post-crosslinking of appropriate dichloroethane swollen precursors without external crosslinking agent in the presence of anhydrous ferric chloride (FeCl(3)) yielded post-crosslinked resins with high surface area and suitable polarity. FT-IR spectrum indicated that increasing the proportion of MMA or EGDMA in monomer mixtures notably reduces the amount of the pendant vinyl groups onto the matrix of the precursors. Furthermore, the pendant vinyl groups of precursors were almost absent when the content of MMA and EGDMA increased to 40 mol% and 20 mol% in the monomers, respectively. The specific surface areas and pore volumes of copolymers showed a remarkable increase after post-crosslinking. Experimental results showed that isotherms of phenol adsorption onto these polymeric adsorbents could be represented by Freundlich model and Langmuir model reasonably. PDE-5 pc exhibited higher adsorption capacity of phenol than other adsorbents, which resulted from synergistic effect of larger specific surface area and polar groups onto the network. Column adsorption/desorption dynamic curves suggested that PDE-5 pc is a potential candidate for treatment of chemical effluent containing phenol and phenolic pollutants.
authors.affiliation: Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China.
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Zeng
authors.forename: Tingjun
authors.initials: T
authors.lastname: Yu
authors.forename: Peng
authors.initials: P
authors.lastname: Wang
authors.forename: Ronghua
authors.initials: R
authors.lastname: Yuan
authors.forename: Qing
authors.initials: Q
authors.lastname: Wen
authors.forename: Yunge
authors.initials: Y
authors.lastname: Fan
authors.forename: Chunhong
authors.initials: C
authors.lastname: Wang
authors.forename: Rongfu
authors.initials: R
authors.lastname: Shi
mesh_terms: D000327:Adsorption; D007220:Industrial Waste / Q000517:prevention & control*; D008689:Methacrylates / Q000737:chemistry; D008768:Methylmethacrylates / Q000737:chemistry; D019800:Phenol / Q000302:isolation & purification*; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry; D011145:Polyvinyls / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods
chemical_list: D007220:Industrial Waste; D008689:Methacrylates; D008768:Methylmethacrylates; D011108:Polymers; D011145:Polyvinyls; D014874:Water Pollutants, Chemical; D019800:Phenol; C004919:ethylene dimethacrylate; C054213:methylmethacrylate-divinylbenzene polymer