Abstract
The polycondensation of adipic acid with m-xylylene dibromide was performed using 1,8-diazabicyclo-[5.4.0]undec-7-ene (DBU) as a base in mixtures of dimethyl sulfoxide (DMSO) with water or in plain water. The reactions proceeded smoothly even in water to give the corresponding polyesters, although the rate of the reaction decreased gradually with increasing water in the mixture. Polymers prepared in the aqueous solution had higher molecular weights (Mn, 7700–9200) than the polymers synthesized in DMSO (Mn, 6100–6400).
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Yamada, Y., Kameyama, A. & Nishikubo, T. Synthesis of Polymers in Aqueous Solutions. Synthesis of Polyesters by Reactions of Dicarboxylic Acids with Alkylene Dihalides Using 1,8-Diazabicyclo[5.4.0]undec-7-ene in Aqueous Solutions. Polym J 29, 899–903 (1997). https://doi.org/10.1295/polymj.29.899
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DOI: https://doi.org/10.1295/polymj.29.899