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New soluble aromatic polyimides have been prepared from 4,4'-(hexafluoroisopropylidene)bis(phthalic anhydride) (6FDA) and 4,4'-(alkylenediyldioxy)dianilinesT. heir structures were determined by i.r., *H n.m.r. and 13C n.m.r, spectroscopic measurements, based on model compounds prepared by reacting 6FDA with p-anisidine. These polymers show low glass transition temperatures and good solubility in various solvents, and are stable up to 440°C in a nitrogen atmosphere

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New soluble polyimides prepared from 4,4'- (a I kylened iyld ioxy) d ia n i I i nes / M. Marek Jr*, D. Doskocilova, P. Schmidt, B. Schneider, J. Kriz, J. Labskyand R. Puffr // Polymer. – 1994. – Vol 35. – P. 4881-4888.

New soluble polyimides prepared from 4,4'- (a I kylened iyld ioxy) d ia n i I i nes - Завантажити.