Effect of bisphenol-A on the structures and properties of phthalonitrile-based resin containing benzoxazine
Phthalonitrile and benzoxazine have been considered as high-performance materials in the field of heterocyclic chemistry. The polymerization of phthalonitrile and benzoxazine accelerated by active phenolic hydroxyl has attracted wide interests. In this work, self-promoted polymerization behavior and...
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| Language: | English |
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Budapest University of Technology and Economics
2015-06-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0005900&mi=cd |
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| author | M. Z. Xu K. Jia X. B. Liu |
| author_facet | M. Z. Xu K. Jia X. B. Liu |
| author_sort | M. Z. Xu |
| collection | DOAJ |
| description | Phthalonitrile and benzoxazine have been considered as high-performance materials in the field of heterocyclic chemistry. The polymerization of phthalonitrile and benzoxazine accelerated by active phenolic hydroxyl has attracted wide interests. In this work, self-promoted polymerization behavior and processability of phthalonitrile containing benzoxazine (BA-ph) with bisphenol-A (BPA) were investigated. Results revealed that BA-ph/BPA exhibited representative doublestage curing behaviors corresponding to the ring-opening polymerization of benzoxazine rings and ring-formation polymerization of nitrile groups. Compared with that of BA-ph, processability of BA-ph/BPA was improved and could be tuned by varying BPA contents, processing temperature and time. Then BA-ph/BPA/glass fiber (GF) composite laminates were prepared. In comparison with that of BA-ph/GF laminates (542 MPa and 25.8 GPa), the flexural strength and modulus were up to 789 MPa and 23.6 GPa, respectively. Moreover, double Tgs were observed at temperature around 200~300°C and 300~380°C, indicating microphase separation during the polymerization of oxazine rings and nitrile groups, confirmed by the scanning electron microscopic (SEM) images. Thermal stabilities demonstrated that all BA-ph/BPA/GF composites exhibited high T10% up to 510°C. The systematic study of BA-ph/BPA system could enrich our knowledge on phthalonitrile-based resins in industrial applications, especially in the areas which require excellent mechanical properties and high temperature resistance. |
| format | Article |
| id | doaj-art-e6d28bdf10ec4fe699a48ccd6d9aabd0 |
| institution | DOAJ |
| issn | 1788-618X |
| language | English |
| publishDate | 2015-06-01 |
| publisher | Budapest University of Technology and Economics |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj-art-e6d28bdf10ec4fe699a48ccd6d9aabd02025-08-20T02:51:45ZengBudapest University of Technology and EconomicseXPRESS Polymer Letters1788-618X2015-06-019656758110.3144/expresspolymlett.2015.53Effect of bisphenol-A on the structures and properties of phthalonitrile-based resin containing benzoxazineM. Z. XuK. JiaX. B. LiuPhthalonitrile and benzoxazine have been considered as high-performance materials in the field of heterocyclic chemistry. The polymerization of phthalonitrile and benzoxazine accelerated by active phenolic hydroxyl has attracted wide interests. In this work, self-promoted polymerization behavior and processability of phthalonitrile containing benzoxazine (BA-ph) with bisphenol-A (BPA) were investigated. Results revealed that BA-ph/BPA exhibited representative doublestage curing behaviors corresponding to the ring-opening polymerization of benzoxazine rings and ring-formation polymerization of nitrile groups. Compared with that of BA-ph, processability of BA-ph/BPA was improved and could be tuned by varying BPA contents, processing temperature and time. Then BA-ph/BPA/glass fiber (GF) composite laminates were prepared. In comparison with that of BA-ph/GF laminates (542 MPa and 25.8 GPa), the flexural strength and modulus were up to 789 MPa and 23.6 GPa, respectively. Moreover, double Tgs were observed at temperature around 200~300°C and 300~380°C, indicating microphase separation during the polymerization of oxazine rings and nitrile groups, confirmed by the scanning electron microscopic (SEM) images. Thermal stabilities demonstrated that all BA-ph/BPA/GF composites exhibited high T10% up to 510°C. The systematic study of BA-ph/BPA system could enrich our knowledge on phthalonitrile-based resins in industrial applications, especially in the areas which require excellent mechanical properties and high temperature resistance.http://www.expresspolymlett.com/letolt.php?file=EPL-0005900&mi=cdPolymer compositesPhthalonitrileBenzoxazineSelf-curedCross-linking |
| spellingShingle | M. Z. Xu K. Jia X. B. Liu Effect of bisphenol-A on the structures and properties of phthalonitrile-based resin containing benzoxazine eXPRESS Polymer Letters Polymer composites Phthalonitrile Benzoxazine Self-cured Cross-linking |
| title | Effect of bisphenol-A on the structures and properties of phthalonitrile-based resin containing benzoxazine |
| title_full | Effect of bisphenol-A on the structures and properties of phthalonitrile-based resin containing benzoxazine |
| title_fullStr | Effect of bisphenol-A on the structures and properties of phthalonitrile-based resin containing benzoxazine |
| title_full_unstemmed | Effect of bisphenol-A on the structures and properties of phthalonitrile-based resin containing benzoxazine |
| title_short | Effect of bisphenol-A on the structures and properties of phthalonitrile-based resin containing benzoxazine |
| title_sort | effect of bisphenol a on the structures and properties of phthalonitrile based resin containing benzoxazine |
| topic | Polymer composites Phthalonitrile Benzoxazine Self-cured Cross-linking |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0005900&mi=cd |
| work_keys_str_mv | AT mzxu effectofbisphenolaonthestructuresandpropertiesofphthalonitrilebasedresincontainingbenzoxazine AT kjia effectofbisphenolaonthestructuresandpropertiesofphthalonitrilebasedresincontainingbenzoxazine AT xbliu effectofbisphenolaonthestructuresandpropertiesofphthalonitrilebasedresincontainingbenzoxazine |