## Abstract A novel __tert__‐butyl‐containing dianhydride was prepared from readily available reagents. It was reacted with various aromatic diamines to prepare a set of polyimides containing __tert__‐butyl pendent groups. The resulting polyimides exhibit high molecular weights (high inherent visco
Synthesis and Characterization of New Soluble Polyimides from 3,3‘,4,4‘-Benzhydrol Tetracarboxylic Dianhydride and Various Diamines
✍ Scribed by Liaw, Der-Jang; Liaw, Been-Yang; Li, Lain-Jong; Sillion, Bernard; Mercier, Régis; Thiria, Remi; Sekiguchi, Hikaru
- Book ID
- 115525299
- Publisher
- American Chemical Society
- Year
- 1998
- Tongue
- English
- Weight
- 111 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0897-4756
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Four kinds of 3,3 ,4,4-benzophenone tetracarboxylic dianhydride (BTDA) -pyromelliitic dianhydride (PMDA) alternating polyimide (BTDA-PMDA API) were obtained by reacting 1 mol BTDA with 2 mol diamines to form BTDA chainextended diamines (BTDA CED), followed by the addition of 1 mol PMDA to yield the
A series of new soluble aromatic polyimides with inherent viscosities of 0.65-1.12 dL/g were synthesized from 1,3-bis(4-aminophenyl)-4,5-diphenylimidazolin-2-one and various aromatic tetracarboxylic dianhydrides by the conventional twostep procedure that included ring-opening polyaddition and subseq