Novel poly(ether-imide)s were prepared by Diels-Alder (DA) reaction of 1, l'-(1-methylethylidene)bis[4-{l-(2-furanylmethoxy)-2-propanolyloxy}]benzene with the bismaleimrnides N, N'-hexamethylenebismaleimide and N-N'-1, 4-phenylenebismaleimide. The DA reaction was carried out in solution using tetrahydrofuran as solvent, as well as in bulk. The post-polymerization, involving aromatization of tetrahydrophthalimide intermediates, was accomplished in the presence of acetic anbydride. 'All the poly(ether-imide)s were characterized by elemental analyses, infrared spectrometry and thermogravimetry.
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Patel et al. (1994) studied this question.
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