Synthesis and characterization of soluble polyimides from 2,2-bis(4-aminophenyl)cycloalkane derivatives

Citation
Mh. Yi et al., Synthesis and characterization of soluble polyimides from 2,2-bis(4-aminophenyl)cycloalkane derivatives, J POL SC PC, 37(17), 1999, pp. 3449-3454
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
ISSN journal
0887-624X → ACNP
Volume
37
Issue
17
Year of publication
1999
Pages
3449 - 3454
Database
ISI
SICI code
0887-624X(19990901)37:17<3449:SACOSP>2.0.ZU;2-F
Abstract
New aromatic diamines [(1) and (2)] containing polycycloalkane structures b etween two benzene rings were synthesized by HCl-catalyzed condensation rea ction of aniline hydrochloride and corresponding polycycloalkanone derivati ves. The structures of diamines were identified by H-1-NMR, C-13-NMR, FTIR spectroscopy, and elemental analysis. The polyimides were synthesized from the obtained diamines with various aromatic dianhydrides by one-step polyme rization in m-cresol. The inherent viscosities of the resulting polyimides were in the range of 0.34-1.02 dL/g. The polyimides showed good thermal sta bilities and solubility. All the polymers were readily soluble in N-methyl- 2-pyrrolidone, m-cresol, tetrachloroethane, etc. Some of them were soluble even in chloroform at room temperature. The glass transition temperatures w ere observed in the range of 323-363 degrees C, and all of the polymers wer e stable up to 400 degrees C under nitrogen atmosphere. (C) 1999 John Wiley & Sons, Inc.