Soluble aromatic polyamide bearing ether linkages: synthesis and characterization |
| |
Authors: | Sonia Zulfiqar Zahoor Ahmad Muhammad Ilyas Sarwar |
| |
Institution: | (1) Department of Chemistry, Quaid-i-Azam University, Islamabad, 45320, Pakistan;(2) Department of Chemistry, Faculty of Science, Kuwait University, P.O. Box 5969, Safat, 13060, Kuwait |
| |
Abstract: | Soluble aromatic polyamide chains were prepared by reacting 4–4′-oxydianiline with isophthaloyl chloride in dimethylacetamide.
To quench the HCl produced during the polymerization reaction, a stoichiometric amount of triethylamine was added. The precipitates
formed were separated leaving behind clear polyamide resin. Thin and transparent film was obtained by evaporating the solvent
and was subjected for Fourier transform infrared (IR), nuclear magnetic resonance (NMR), gel permeation chromatography, thermogravimetric
analysis, differential scanning calorimetry, water absorption, and mechanical analyses. The transparent film was found to
be soluble in dimethylacetamide, dimethyl sulfoxide, and dimethylformamide. IR and NMR spectroscopic analyses confirmed the
structure of the polyamide while the gel permeation chromatography revealed the formation of a high-molecular-weight polymer.
Thermogravimetry, differential scanning calorimetry, water absorption, and mechanical testing were also performed to further
verify its physical properties. A soluble aromatic polyamide was successfully synthesized by solution polymerization and characterized.
The polyamide has film-forming property, and the film is transparent, mechanically strong, and thermally stable. |
| |
Keywords: | Aromatic polyamide Spectroscopic analysis GPC Mechanical properties TGA DSC |
本文献已被 SpringerLink 等数据库收录! |
|