New imide-copolymers with coronand structure |
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| Authors: | Nils Kottner Elisabeth Klemm |
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| Affiliation: | Institut für Organische Chemie und Makromolekulare Chemie, Friedrich-Schiller-Universit?t Jena, Humboldtstrasse 10, D-07743 Jena, Germany, DE
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| Abstract: | SUMMARY The Diels-Alder reaction of bis-(2-pyrone) 2 with various aliphatic and aromatic bismaleimides 1 in dilute solution was carried out to produce linear soluble copolymers with a coronand structure. NMR spectra and model reactions confirm the structure 4 (3). The polymers show weight losses at about 440°C determined by thermogravimetric analysis (Tab. 1). Received: 23 April 1998/Revised version: 8 June 1998/Accepted: 10 June 1998 |
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