Synthesis and Properties of Poly[p-(2,5-dihydroxy)- phenylenebenzobisoxazole] Fiber
Abstract
:1. Introduction
2. Experimental
2.1. Materials
2.2. Measurements
2.3. Synthesis
2.3.1. Synthesis of 2,5-Dihydroxyterephthalic acid (DHTA) (Scheme 1)
2.3.2. Polymerization
3. Results and Discussion
3.1. Characteristics of the synthesized polymer
3.2. Thermal decomposition behaviour of PBOH fiber
3.3. XRD and Raman analysis of PBOH fibers
3.4. Mechanical properties of PBOH fibers
3.5. Molecular simulation of PBOH
4. Conclusions
Acknowledgments
References
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PBOH | PBO | |
---|---|---|
Reaction time/h | 15~18 | 24~26 |
[η]/dL·g−1 | 18.1 | 21.6 |
M̄w | 78000 | 84600 |
PBOH | PBO | Zylon-AS | |
---|---|---|---|
Tensile strength / GPa | 3.1 ± 0.2 | 4.2 ± 0.2 | 5.8 ± 0.1 |
tensile modulus / GPa | 155 ± 7 | 174 ± 5 | 190 ± 4 |
Fibre Diameter /μ m | 18–20 | 18–20 | 11–13 |
compressive strength / mPa | 331 ± 10 | 277 ± 9 | 297 ± 4 |
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Lin, H.; Huang, Y.-D.; Wang, F. Synthesis and Properties of Poly[p-(2,5-dihydroxy)- phenylenebenzobisoxazole] Fiber. Int. J. Mol. Sci. 2008, 9, 2159-2168. https://doi.org/10.3390/ijms9112159
Lin H, Huang Y-D, Wang F. Synthesis and Properties of Poly[p-(2,5-dihydroxy)- phenylenebenzobisoxazole] Fiber. International Journal of Molecular Sciences. 2008; 9(11):2159-2168. https://doi.org/10.3390/ijms9112159
Chicago/Turabian StyleLin, Hong, Yu-Dong Huang, and Feng Wang. 2008. "Synthesis and Properties of Poly[p-(2,5-dihydroxy)- phenylenebenzobisoxazole] Fiber" International Journal of Molecular Sciences 9, no. 11: 2159-2168. https://doi.org/10.3390/ijms9112159