Synthesis and characterization of a novel quaternary copolymerized thermoplastic copolyimide with excellent heat resistance, thermoplasticity, and solubility
A series of novel quaternary copolymerized thermoplastic polyimides were successfully prepared with asymmetric diahydride: 3,4′-oxydiphthalic anhydride (a-ODPA) and symmetric anhydride: 4,4′-oxydiphthalicanhydride (s-ODPA), 9,9′-bis(4-aminophenyl)fluorene (BAFL) and 2,2-bis[4-(4-aminophenoxy)phenyl]...
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| Language: | English |
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Budapest University of Technology and Economics
2020-08-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0010455&mi=cd |
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| author | X. W. Cao C. Wei G. J. He X. Liu |
| author_facet | X. W. Cao C. Wei G. J. He X. Liu |
| author_sort | X. W. Cao |
| collection | DOAJ |
| description | A series of novel quaternary copolymerized thermoplastic polyimides were successfully prepared with asymmetric diahydride: 3,4′-oxydiphthalic anhydride (a-ODPA) and symmetric anhydride: 4,4′-oxydiphthalicanhydride (s-ODPA), 9,9′-bis(4-aminophenyl)fluorene (BAFL) and 2,2-bis[4-(4-aminophenoxy)phenyl]propane (BAPP) as diamine. The synergistic effect of non-coplanar structure, fluorenyl cardo groups, methyl groups and flexible groups on the solubility, heat resistance and thermoplasticity of polyimide was discussed. The experimental results showed that the addition of BAFL greatly improved the heat resistance of polyimide. The glass transition temperature (Tg) of PI-A~PI-E with different ratios were 235.3–305.5 °C. Compared with control group PI-F, PI-A~PI-E were completely soluble within 3 h in DMF, DMAc, NMP, showing that they had excellent solubility, and what’s more, under the synergistic effect, the thermoplasticity of PI-A~PI-E was also greatly improved. |
| format | Article |
| id | doaj-art-e4622e5b6fb9439c9676ba36f3246e1c |
| institution | DOAJ |
| issn | 1788-618X |
| language | English |
| publishDate | 2020-08-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-e4622e5b6fb9439c9676ba36f3246e1c2025-08-20T03:19:08ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2020-08-0114875776710.3144/expresspolymlett.2020.62Synthesis and characterization of a novel quaternary copolymerized thermoplastic copolyimide with excellent heat resistance, thermoplasticity, and solubilityX. W. CaoC. WeiG. J. HeX. LiuA series of novel quaternary copolymerized thermoplastic polyimides were successfully prepared with asymmetric diahydride: 3,4′-oxydiphthalic anhydride (a-ODPA) and symmetric anhydride: 4,4′-oxydiphthalicanhydride (s-ODPA), 9,9′-bis(4-aminophenyl)fluorene (BAFL) and 2,2-bis[4-(4-aminophenoxy)phenyl]propane (BAPP) as diamine. The synergistic effect of non-coplanar structure, fluorenyl cardo groups, methyl groups and flexible groups on the solubility, heat resistance and thermoplasticity of polyimide was discussed. The experimental results showed that the addition of BAFL greatly improved the heat resistance of polyimide. The glass transition temperature (Tg) of PI-A~PI-E with different ratios were 235.3–305.5 °C. Compared with control group PI-F, PI-A~PI-E were completely soluble within 3 h in DMF, DMAc, NMP, showing that they had excellent solubility, and what’s more, under the synergistic effect, the thermoplasticity of PI-A~PI-E was also greatly improved.http://www.expresspolymlett.com/letolt.php?file=EPL-0010455&mi=cdtailor made polymersthermoplastic polyimidenon-coplanar structurefluorenethermal stability |
| spellingShingle | X. W. Cao C. Wei G. J. He X. Liu Synthesis and characterization of a novel quaternary copolymerized thermoplastic copolyimide with excellent heat resistance, thermoplasticity, and solubility eXPRESS Polymer Letters tailor made polymers thermoplastic polyimide non-coplanar structure fluorene thermal stability |
| title | Synthesis and characterization of a novel quaternary copolymerized thermoplastic copolyimide with excellent heat resistance, thermoplasticity, and solubility |
| title_full | Synthesis and characterization of a novel quaternary copolymerized thermoplastic copolyimide with excellent heat resistance, thermoplasticity, and solubility |
| title_fullStr | Synthesis and characterization of a novel quaternary copolymerized thermoplastic copolyimide with excellent heat resistance, thermoplasticity, and solubility |
| title_full_unstemmed | Synthesis and characterization of a novel quaternary copolymerized thermoplastic copolyimide with excellent heat resistance, thermoplasticity, and solubility |
| title_short | Synthesis and characterization of a novel quaternary copolymerized thermoplastic copolyimide with excellent heat resistance, thermoplasticity, and solubility |
| title_sort | synthesis and characterization of a novel quaternary copolymerized thermoplastic copolyimide with excellent heat resistance thermoplasticity and solubility |
| topic | tailor made polymers thermoplastic polyimide non-coplanar structure fluorene thermal stability |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0010455&mi=cd |
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