Sulfonated polystyrene was obtained by the sulfonation using the waste foamed polystyrene( PS). The sulfonated polystyrene membrane was prepared by the solvent evaporation method and the membrane was used to catalyze esterification reaction to produce biodiesel. The process conditions of preparing biodiesel by sulfonated polystyrene catalytic membrane were studied. The results show that in the infrared spectrum 1 230,1 003 cm~(- 1) were the symmetric and asymmetric stretching vibration peaks of the S—O bond...
and the repeatability performance of the sulfonated polystyrene membrane with sulfonated degree of38.4%are the best.The content of esters in the product was 91.05%by gas chromatography mass spec-trometer.随着石化资源日益减少及人们环保意识逐渐增强,发展可再
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