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Preparation and properties of novel processable polyimides derived from a new diisocyanate

✍ Scribed by Hamid Yeganeh; Shahram Mehdipour-Ataei

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
98 KB
Volume
38
Category
Article
ISSN
0887-624X

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## SYNOPSIS New polyimides containing diamantane units were prepared by a conventional two-step method starting from 1,6-diaminodiamantane and aromatic dianhydrides. The intermediate poly(amic acid)s had inherent viscosities of 0.33-0.55 dL/g. These polyimides did not decompose below 400Β°C in air

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A series of aromatic diamines containing pendent methoxy, phenoxy, and biphenoxy moieties were synthesized. By the reaction of diamines with 3,3,4,4-benzophenonetetracarboxylic dianhydride (BTDA), several kinds of polyimides having bulky pendent ether groups were synthesized. Thermal properties and