Abstract
Two linear polyesters from cis- and trans-cyclohexene-1,2-dicarboxylic acid and diethylene glycol have been synthesized by solution polycondensation in m-xylene. Fractions of the two polyesters of M n ca 10,000 g/mol were used for identification and structural studies, along with cis- and trans-4-cyclohexene-1,2-dicarboxydiethyl ester, used as models. Thermal and i.r. spectral data of models and polymers are reported. The structures of the cis and trans species could be unambiguously elucidated by means of 1H- and 13C-NMR.
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