Abstract
A series of aromatic copolyimide (co-PI) fibers containing benzimidazole and benzoxazole were prepared by introducing 5-amino-2-(4-aminobenzene)benzoxazole (BOA) and 2-(4-aminophenyl)-5-aminobenzimidazole (BIA) into the rigid 3,3′,4,4′-biphenyltetracarboxylic dianhydride (BPDA)/p-phenylenediamine (p-PDA) backbone via a typical two-step wet-spinning method. The incorporated BOA and BIA moieties in the polymer chains resulted in significant changes on the comprehensive performances of the resulting PI fibers. The optimum tensile strength was 2.26 GPa with the BIA/BOA molar ratio of 3/1, whereas the optimum initial modulus was 145.0 GPa with the BIA/BOA molar ratio of 1/3. The drastically improved mechanical properties were originated from the hydrogen-bonding intermolecular interactions by BIA moieties and high molecular orientation by BOA moieties. FT-IR results confirmed the presence of hydrogen-bonding interaction in the fibers with high imidization degree. Two-dimensional wide-angle X-ray diffraction (2D WAXD) indicated the existence of highly oriented structures along the fiber axial direction, while this feature varied with different diamine ratios. SEM observations showed that the fibers were obtained with homogeneous and uniform structures at various diamine ratios. Meanwhile, the co-PI fibers exhibited excellent thermal properties with 5 % weight loss temperature ranging from 563 to 570 °C in nitrogen and glass transition temperature ranging from 308 to 321 °C.
Similar content being viewed by others
References
Hasegawa M, Horie K (2001) Photophysics, photochemistry, and optical properties of polyimides. Prog Polym Sci 26:259–335
Liaw DJ, Wang KL, Huang YC, Lee KR, Lai JY, Ha CS (2012) Advanced polyimide materials: syntheses, physical properties and applications. Prog Polym Sci 37:907–974
Hsiao SH, Chen YJ (2002) Structure–property study of polyimides derived from PMDA and BPDA dianhydrides with structurally different diamines. Eur Polym J 38:815–828
Kaneda T, Katsura T, Nakagawa K, Makino H, Horio M (1986) High-strength–high-modulus polyimide fibers I. One-step synthesis of spinnable polyimides. J Appl Polym Sci 32:3133–3149
Kaneda T, Katsura T, Nakagawa K, Makino H, Horio M (1986) High-strength-high-modulus polyimide fibers II. Spinning and properties of fibers. J Appl Polym Sci 32:3151–3176
Dorogy WE, Clair AKS (1991) Wet spinning of solid polyamic acid fibers. J Appl Polym Sci 43:501–519
Dorogy WE, Clair AKS (1993) Fibers from a soluble, fluorinated polyimide. J Appl Polym Sci 49:501–510
Li WH, Wu ZQ, Jiang H, Eashoo M, Harris FW, Cheng SZD (1996) High-performance aromatic polyimide fibres. J Mater Sci 31:4423–4431. doi:10.1007/BF00356470
Li WH, Wu ZQ, Zhang AQ, Leland ME, Park JY, Harris FW, Cheng SZD (1997) High-performance aromatic polyimide fibers. 6. Structure and morphology changes in compressed BPDA-DMB fibers. J Macromol Sci Part B Phys 36:315–333
Zhang QH, Dai M, Ding MX, Chen DJ, Gao LX (2004) Morphology of polyimide fibers derived from 3, 3′, 4, 4′-biphenyltetracarboxylic dianhydride and 4, 4′-oxydianiline. J Appl Polym Sci 93:669–675
Zhang QH, Luo WQ, Gao LX, Chen DJ, Ding MX (2004) Thermal mechanical and dynamic mechanical property of biphenyl polyimide fibers. J Appl Polym Sci 92:1653–1657
Dong J, Yin CQ, Lin JY, Zhang DB, Zhang QH (2014) Evolution of the microstructure and morphology of polyimide fibers during heat-drawing process. RSC Adv 4:44666–44673
Yin CQ, Dong J, Zhang ZX, Zhang QH, Lin JY (2015) Structure and properties of polyimide fibers containing benzimidazole and Amide Units. J Polym Sci, Part B 53:183–191
Yin CQ, Dong J, Tan WJ, Lin JY, Chen DJ, Zhang QH (2015) Strain-induced crystallization of polyimide fibers containing 2-(4-aminophenyl)-5-aminobenzimidazole moiety. Polymer 75:178–186
Zhang MY, Niu HQ, Chang JJ, Ge QY, Cao L, Wu DZ (2015) High-performance fibers based on copolyimides containing benzimidazole and ether moieties: molecular packing, morphology, hydrogen-bonding interactions and properties. Polym Eng Sci 55:2615–2625
Liu XY, Gao GQ, Dong L, Ye GD, Gu Y (2009) Correlation between hydrogen-bonding interaction and mechanical properties of polyimide fibers. Polym Adv Technol 20:362–366
Zhang QH, Dai M, Ding MX, Chen DJ, Gao LX (2004) Mechanical properties of BPDA–ODA polyimide fibers. Eur Polym J 40:2487–2493
Eashoo M, Shen DX, Wu ZQ, Lee CJ, Harris FW, Cheng SZD (1993) High-performance aromatic polyimide fibres: 2. Thermal mechanical and dynamic properties. Polymer 34:3209–3215
Chang JJ, Niu HQ, Zhang MY, Ge QY, Li Y, Wu DZ (2015) Structures and properties of polyimide fibers containing ether units. J Mater Sci 50:4104–4114. doi:10.1007/s10853-015-8966-4
Cheng SZD, Wu ZQ, Mark E (1991) A high-performance aromatic polyimide fibre: 1. Structure, properties and mechanical-history dependence. Polymer 32:1803–1810
Eashoo M, Wu ZQ, Zhang AQ, Shen DX, Tse C, Harris FW, Cheng SZD, Gardner KH, Hsiao BS (1994) High performance aromatic polyimide fibers, 3. A polyimide synthesized from 3, 3′, 4, 4′-biphenyltetracarboxylic dianhydride and 2, 2′-dimethyl-4, 4′-diaminobiphenyl. Macromol Chem Phys 195:2207–2225
Dong J, Yin CQ, Luo WQ, Zhang QH (2013) Synthesis of organ-soluble copolyimides by one-step polymerization and fabrication of high performance fibers. J Mater Sci 48:7594–7602. doi:10.1007/s10853-013-7576-2
Niu HQ, Qi SL, Han EL, Tian GF, Wang XD, Wu DZ (2012) Fabrication of high-performance copolyimide fibers from 3, 3′, 4, 4′-biphenyltetracarboxylic dianhydride, p-phenylenediamine and 2-(4-aminophenyl)-6-amino-4 (3H)-quinazolinone. Mater Lett 89:63–65
Chang JJ, Niu HQ, He M, Sun M, Wu DZ (2015) Structure–property relationship of polyimide fibers containing ether groups. J Appl Polym Sci 132:42474
Chang JJ, Ge QY, Zhang MY, Liu WW, Cao L, Niu HQ, Sui G, Wu DZ (2015) Effect of pre-imidization on the structures and properties of polyimide fibers. RSC Adv 5:69555–69566
Zhang MY, Niu HQ, Lin ZW, Qi SL, Chang JJ, Ge QY, Wu DZ (2015) Preparation of high performance copolyimide fibers via increasing draw ratios. Macromol Mater Eng 300:1096–1107
Eashoo M, Buckley LJ, Clair AKS (1997) Fibers from a low dielectric constant fluorinated polyimide: solution spinning and morphology control. J Polym Sci 35:173–185
Chang JJ, Liu WW, Zhang MY, Cao L, Ge QY, Niu HQ, Sui G, Wu DZ (2015) Structures and properties of polyimide fibers containing fluorine groups. RSC Adv 5:71425–71432
Huang SB, Jiang ZY, Ma XY, Qiu XP, Men YF, Gao LX, Ding MX (2013) Properties, morphology and structure of BPDA/PPD/ODA polyimide fibres. Plast, Rubber Compos 42:407–415
Luo LB, Yao J, Wang X, Li K, Huang JY, Li BY, Wang HN, Liu XY (2014) The evolution of macromolecular packing and sudden crystallization in rigid-rod polyimide via effect of multiple H-bonding on charge transfer (CT) interactions. Polymer 55:4258–4269
Gao GQ, Dong L, Liu XY, Ye GD, Gu Y (2008) Structure and properties of novel PMDA/ODA/PABZ polyimide fibers. Polym Eng Sci 48:912–917
Dong J, Yin CQ, Zhang ZX, Wang XY, Li HB, Zhang QH (2014) Hydrogen-bonding interactions and molecular packing in polyimide fibers containing benzimidazole units. Macromol Mater Eng 299:1170–1179
Zhuang YB, Liu XY, Gu Y (2012) Molecular packing and properties of poly (benzoxazole-benzimidazole-imide) copolymers. Polym Chem 3:1517–1525
Yin CQ, Dong J, Zhang DB, Lin JY, Zhang QH (2015) Enhanced mechanical and hydrophobic properties of polyimide fibers containing benzimidazole and benzoxazole units. Eur Polym J 67:88–98
Luo LB, Zheng YX, Huang JY, Li K, Wang HN, Feng Y, Wang X, Liu XY (2015) High-performance copoly (benzimidazole-benzoxazole-imide) fibers: fabrication, structure, and properties. J Appl Polym Sci 132:42001
Liu XY, Guo LH, Gu Y (2005) A novel aromatic polyimide with rigid biphenyl side-groups: formation and evolution of structures in thermoreversible gel. Polymer 46:11949–11957
Luo LB, Pang YW, Jiang X, Wang X, Zhang P, Chen Y, Peng CR, Liu XY (2012) Preparation and characterization of novel polyimide films containing amide groups. J Polym Res 19:1–7
Wu TM, Chvalun SN, Blackwell J, Cheng SZD, Wu Z, Harris FW (1995) Effect of draw ratio on the structure of aromatic copolyimide fibers of random monomer sequence. Acta Polym 46:261–266
Niu HQ, Huang MJ, Qi SL, Han EL, Tian GF, Wang XD, Wu DZ (2013) High-performance copolyimide fibers containing quinazolinone moiety: preparation, structure and properties. Polymer 54:1700–1708
Goel RN, Hepworth A, Deopura BL, Varma IK, Varma DS (1979) Polyimide fibers: structure and morphology. J Appl Polym Sci 23:3541–3552
Acknowledgement
The authors greatly thank the financial support from the National Natural Science Foundation of China (NSFC, Project No. 51373008), National Key Basic Research Program of China (973 Program, No. 2014CB643606), and Beijing Key New Materials Research and Application Project (No. Z141100004214005).
Author information
Authors and Affiliations
Corresponding authors
Rights and permissions
About this article
Cite this article
Sun, M., Chang, J., Tian, G. et al. Preparation of high-performance polyimide fibers containing benzimidazole and benzoxazole units. J Mater Sci 51, 2830–2840 (2016). https://doi.org/10.1007/s10853-015-9591-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10853-015-9591-y