Increased Hydrogen-bonding of Poly(m-phenylene isophthalamide) (PMIA) with Sulfonate Moiety for High-performance Easily Dyeable Fiber

The demand for high thermal stability and high strength agents is growing steadily as a result of their increasing application in advanced materials. A series of sulfonated poly( m -phenyleneisophthalamide) (SPMIA) copolymers with superior thermal stability and good mechanical properties have been p...

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Bibliographic Details
Published in:Chinese journal of polymer science 2020-11, Vol.38 (11), p.1230-1238
Main Authors: Li, Na, Zhang, Xing-Ke, Yu, Jun-Rong, Wang, Yan, Zhu, Jing, Hu, Zu-Ming
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Copolymers
Differential scanning calorimetry
Dynamic mechanical analysis
Fibers
Fourier transforms
Hydrogen bonding
Industrial Chemistry/Chemical Engineering
Low temperature
Mechanical properties
Polymer Sciences
Spinning (materials)
Thermal stability
Thermodynamic properties
Wet spinning
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Summary:The demand for high thermal stability and high strength agents is growing steadily as a result of their increasing application in advanced materials. A series of sulfonated poly( m -phenyleneisophthalamide) (SPMIA) copolymers with superior thermal stability and good mechanical properties have been prepared via low temperature polycondensation method. Then the structures of SPMIA copolymers with different content quantities of 2,4-diaminobenzenesulfonic acid (2,4-DABSA) were confirmed by Fourier transform infrared (FTIR). Besides, their superior thermal properties were systematically investigated by differential scanning calorimetry (DSC), thermalgravimetreic analysis (TGA), and dynamic mechanical analysis (DMA). SPMIA fibers were obtained by wet spinning using the resultant SPMIA solutions. In addition, the obtained SPMIA fibers were proved to combine enhanced mechanical properties and unprecedented dyeability. Significantly, the SPMIA fiber with great mechanical property, thermal stability, and dyeability shows great potential in easily dyeing high-performance protective fibers.
ISSN:0256-7679
1439-6203
DOI:10.1007/s10118-020-2416-8