| 초록 |
Biodiesel, an easily burning and biodegradable fuel, is an alternative to conventional diesel fuel. As solid acid catalysts are considered promising candidates for biodiesel production, we have synthesized a series of organic knitted porous polyaromatics using pyrene, anthracene, and naphthalene as monomers via Friedel-Crafts alkylation, followed by self-crosslinking reactions. The resultant polymers exhibited good surface morphology, stability and swelling property, high capacity for functionalization due to the unreacted bromomethyl groups on the surface, and excellent hydrophobicity. The sulfonated polymer microspheres obtained by the surface sulfonation showed good surface acidity; thus, they can be employed as heterogeneous solid acid catalysts for the esterification of long-chain fatty acids and transesterification of triglycerides, and they are reusable without any leaching of functional groups. |
