Study on the Synthesis and Properties of Novel Alkyl Methylnaphthalene Sulfonate Surfactants

摘要

A series of high purity monoalkyl methylnaphthalene intermediates were prepared by alkylation of p-methylnaphthalene with a series of different chain lengths of n-bromoalkanes.Gas chro-matography and gas chromatography-mass spectrometry were used as appropriate methods for this technology.The reaction conditions were optimized.The effect of dosage of catalysts,the molar ratio of beta-methyl naphthalene to bromoalkane and of the solvent to beta-methyl naphthalene,the reaction time as well as the temperature had also been investigated in detail.The optimal reaction conditions of alkylation have been achieved,and the reaction results were discussed.Based on the optimal reaction conditions,a series of monoalkylmethyl-naphthalene intermediates,hexyl-,octyl-,decyl-,dodecyl-,tetra-decyl-methyl-naphthalenes had been prepared.