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New thermally stable poly(amide-imide)/montmorillonite reinforced nanocomposite based on N,N′-pyrromellitoyl-bis-l-valine: synthesis and characterization
| Content Provider | Directory of Open Access Journals (DOAJ) |
|---|---|
| Author | Faghihi Khalil Dehnavi Narges Hajibeygi Mohsen |
| Abstract | Two new samples of poly(amide-imide) (PAI)/nanocomposites reinforced montmorillonite containing N,N′-pyrromelitoyl-bis-l-valine moiety in the main chain were synthesized by a solution intercalation technique. PAI 3 as a source of polymer matrix was synthesized by the direct polycondensation reaction of N,N′-pyrromelitoyl-bis-l-valine 1 with 4,4′-diamino diphenyl ether 2 in the presence of triphenyl phosphite, CaCl2, pyridine and N-methyl-2-pyrrolidone. The morphology and structure of the resulting PAI-nanocomposite films 4a and 4b with 5% and 10% silicate particles were characterized by Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy. The effect of clay dispersion and the interaction between clay and polymeric chains on the properties of nanocomposites films were investigated by using UV-visible spectroscopy, thermogravimetric analysis and differential scanning calorimetry. |
| Related Links | https://doi.org/10.1515/secm-2012-0043 |
| ISSN | 07921233 |
| e-ISSN | 21910359 |
| DOI | 10.1515/secm-2012-0043 |
| Journal | Science and Engineering of Composite Materials |
| Issue Number | 1 |
| Volume Number | 21 |
| Language | English |
| Publisher | De Gruyter |
| Publisher Date | 2014-01-01 |
| Publisher Place | Poland |
| Access Restriction | Open |
| Subject Keyword | Materials of engineering and construction. Mechanics of materials Montmorillonite Nanocomposite Poly(amide-imide) Polycondensation |
| Content Type | Text |
| Resource Type | Article |
