abstract
Novel polyimides containing furan moieties were prepared from the resulting furanic diamine monomers with various aromatic dianhydrides including 1,2,4,5-benzene-tetracarboxylic dianhydride, 3,3',4,4'-biphenyltetracarboxylic dianhydride, 4,4'-oxydiphthalic anhydride, and hexafluoroisopropylidene 2,2-bis(phthalic anhydride), via a two-step process. The resulting polyimides were characterized by solubility tests, viscosity measurements, FTIR, H-1 NMR spectroscopy, differential scanning calorimetric (DSC), and thermogravimetric analysis (TGA) analysis. The polyimides with inherent viscosities in the range of 0.048-0.095 L/g showed excellent solubility in aprotic amide and organic solvents, such as N,N-dimethylacetamide, N-methyl-2-pyrrolidinone, dimethylformamide and acetone, chloroform, etc. DSC showed glass transition temperatures (T (g)) in the range of 116-143 A degrees C. These polymers showed excellent thermal stability up to 390 A degrees C.
keywords
THERMOPLASTIC POLYIMIDE; POLYCONDENSATION; MOIETIES; UNITS
subject category
Polymer Science
authors
Ben Maktouf, L; Ghorbel, I; Afli, A; Abid, S; Gandini, A
our authors
Alessandro Gandini
ResearcherGroups
acknowledgements
The authors acknowledge the Ministry of Higher Education, Scientific Research and Technology in Tunisia for their financial support. They also thank Prof. Rachid El Gharbi for his useful discussions about this work.