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Novel Organosoluble and Colorless Poly(ether Imide)s Based on 3,3-Bis[4-(3,4-dicarboxyphenoxy)phenyl]phthalide Dianhydride and Aromatic Bis(ether Amine)s Bearing Pendent Trifluoromethyl Groups by Chin-Ping Yang; Yu-Yang Su is a Materials Science article available to read on EtoBox.

What is Novel Organosoluble and Colorless Poly(ether Imide)s Based on 3,3-Bis[4-(3,4-dicarboxyphenoxy)phenyl]phthalide Dianhydride and Aromatic Bis(ether Amine)s Bearing Pendent Trifluoromethyl Groups about?

## Abstract A novel series of colorless and highly organosoluble poly(ether imide)s were prepared from 3,3‐bis[4‐(3,4‐dicarboxyphenoxy)phenyl]phthalide dianhydride with various fluorinated aromatic bis(ether amine)s via a conventional two‐stage process that included ring‐opening polyaddition to form the poly(amic acid)s followed by cyclodehydration to produce the polymer films. The poly(ether imide)s showed excellent solubility, with most of them dissoluble at a concentration of 10 wt % in amide polar solvents, in ether‐type solvents, and even in chlorinated solvents. Their films had a cutoff wavelength between 358 and 373 nm, and the yellowness index ranged from 3.1 to 9.5. The glass‐transition temperatures of the poly(ether imide) series were recorded between 237 and 297 °C, the decomposition temperatures at 10% weight loss were all above 494 °C, and the residue was more than 54% at 800 °C in nitrogen. These films showed high tensile strength and also were characterized by higher solubility, lighter color, and lower dielectric constants and moisture absorption than an analogous nonfluorinated polyimide series. © 2006 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 44: 3140

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Author

Chin-Ping Yang; Yu-Yang Su

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0887-624X)

Published

2006

Language

EN

Field

Materials Science (Physical Sciences)