Polyesterification and isomerization of maleic anhydride and 1,6-hexane diol as studied by 1H and 13C n.m.r. |
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Authors: | Mladen Andreis Zorica Veksli Zlatko Meić |
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Affiliation: | Ruder Bos?kovi? Institute, POB 1016, 41001 Zagreb, Croatia, Yugoslavia |
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Abstract: | The polyesterification and isomerization reaction of 1,6-hexane diol and maleic anydride in a melt without catalyst was studied by 13C and 1H n.m.r. spectroscopy. The structure and concentration of oligoester species during the polyesterification and isomerization were determined depending on the reaction temperature and time. According to the number and configuration of repeating units determined from 1H n.m.r. spectra kinetics of both reactions were also considered. The degree of isomerization is continuously increasing in the investigated reaction range. |
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Keywords: | polyesterification reaction kinetics 1,6-hexane diol maleic anhydride |
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