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Synthesis and Characterization of Highly Soluble and Oxygen Permeable New Polyimides Based on Twisted Biphenyl Dianhydride and Spirobifluorene Diamine

✍ Scribed by Kim, Yun-Hi; Kim, Hyung-Sun; Kwon, Soon-Ki

Book ID: 126110645
Publisher: American Chemical Society
Year: 2005
Tongue: English
Weight: 198 KB
Volume: 38
Category: Article
ISSN: 0024-9297
DOI: 10.1021/ma047433x

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## Abstract A new kind of pyridine‐containing aromatic diamine monomer, 4‐phenyl‐2,6‐bis[4‐(4‐aminophenoxy)phenyl]‐pyridine (PAPP), was successfully synthesized by a modified chichibabin reaction of benzaldehyde and a substituted acetophenone, 4‐(4‐nitrophenoxy)‐acetophenone (NPAP), followed by a r