We have investigated a novel monomer having a pendent phenyl imide group for preparing new cycloaliphatic-aromatic polyamides. Novel polyamides were synthesized by a direct polycondensation reaction of N-phenyl-2,3-imide cyclopentane-1,4-dicarboxylic acid (PCPA) and various aromatic diamines. A direct polycondensation was carried out by a Yamazaki's direct polycondensation that is typical of using triphenyl phosphite, lithium chloride, and pyridine. Inherent viscosity of these resulting polyamides was in the range 0.47-1.05 dL/g. The glass transition temperatures of these polyamides were in the range of 190-200°C. The decomposition temperatures of them were in the range of 310-323°C in nitrogen atmosphere. The Solubility of these polyamides are good in aprotic solvents such as DMAc (N,N-Dimethylacetamide), NMP (N-Methyl-2-Pyrrolidinone) and DMF (N,N-Dimethylformamide). Transparent, flexible, and tough films were cast from DMAc solutions.
|Number of pages||13|
|Journal||Journal of Macromolecular Science - Pure and Applied Chemistry|
|Publication status||Published - 2001|
Bibliographical noteFunding Information:
The authors are grateful to the National Research Laboratory (NRL) 2000 program (Plastic Optical Fiber) by the Korea Institute of Science and Technology Evaluation and Planning (KISTEP) for their financial support. This work was supported by the Research Fund of Hanyang University (Project No. HYU-98-014).
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Polymers and Plastics
- Materials Chemistry