Thick wall mesoporous carbons with a large pore structure templated from a weakly hydrophobic PEO–PMMA diblock copolymer

• DOI: 10.1039/b713310c
• Publication Date: 2007-11-12T10:16:06Z
• Authors: Yonghui Deng; Chong Liu; Dong Gu; Ting Yu; Bo Tu; Dongyuan Zhao
• Keywords: Small-angle X-ray scattering; Atom-transfer radical-polymerization

Thick wall mesoporous carbons (FDU-18) with ordered large pore structures were synthesized via an evaporation induced self-assembly (EISA) approach by using a novel amphiphilic diblock copolymer weakly hydrophobic segment as template, soluble resol carbon source and THF solvent. The versatile atom transfer radical polymerization (ATRP) method was utilized to prepare the copolymer, poly(ethylene oxide)-b-poly(methyl methacrylate) (PEO-b-PMMA). 1H NMR spectroscopy gel permeation chromatography show that obtained PEO-b-PMMA has Mn of 20 070 g mol−1 narrow molecular weight distribution (1.09). Small angle X-ray scattering (SAXS) transmission electron microscopy (TEM) measurements demonstrate have face centered cubic close-packed mesostructure (Fmm) unit cell (∼38 nm). N2 sorption isotherms indicate high surface area up 1050 m2 g−1 uniform mesopore (∼10.5 It is interesting walls carbonaceous materials are ultra thick (ca. 11.5–12.4 nm), which even larger their diameters. related block PMMA, can associate phenolic precursors. Many useful performances such mechanical/chemical stability graphitization could be expected for this kind material.