Cargando…
Self-curing triphenol A-based phthalonitrile resin precursor acts as a flexibilizer and curing agent for phthalonitrile resin
Major problems currently limiting the widespread application of phthalonitrile resins are the high precursor melting point and volatility of the curing agent. Herein, a novel self-curing triphenol A-based phthalonitrile resin precursor (TPPA-Ph) was successfully synthesized by reacting α,α,α′-tris(4...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9086328/ https://www.ncbi.nlm.nih.gov/pubmed/35547674 http://dx.doi.org/10.1039/c8ra06926c |
_version_ | 1784703973816532992 |
---|---|
author | Hu, Yue Weng, Zhihuan Qi, Yu Wang, Jinyan Zhang, Shouhai Liu, Cheng Zong, Lishuai Jian, Xigao |
author_facet | Hu, Yue Weng, Zhihuan Qi, Yu Wang, Jinyan Zhang, Shouhai Liu, Cheng Zong, Lishuai Jian, Xigao |
author_sort | Hu, Yue |
collection | PubMed |
description | Major problems currently limiting the widespread application of phthalonitrile resins are the high precursor melting point and volatility of the curing agent. Herein, a novel self-curing triphenol A-based phthalonitrile resin precursor (TPPA-Ph) was successfully synthesized by reacting α,α,α′-tris(4-hydroxyphenyl)-1-ethyl-4-isopropylbenzene (TPPA) with 4-nitrophthalonitrile (NPh) via nucleophilic substitution. The presence of residual phenolic hydroxyl groups in the TPPA-Ph precursor promoted the curing reaction of phthalonitrile resin in the absence of an additional curing reagent. Self-cured TPPA-Ph resins exhibited relatively low melting points (less than 100 °C), high thermal stability, and a wide processing window (116 °C). Furthermore, the TPPA-Ph precursors contained phenolic hydroxyl and cyano groups that can be used as flexibilizers and curing agents to optimize other phthalonitrile resins. Resorcinol-based phthalonitrile resin (DPPH) cured with various amounts of TPPA-Ph possessed excellent thermal and thermo-oxidative stability with a 5% weight loss temperature exceeding 530 °C, T(g)s above 380 °C, and a wide processing window and time. Therefore, as a novel precursor and curing agent for phthalonitrile resins, the triphenol A-based phthalonitrile resin is an ideal resin matrix for high-performance composites with broad application prospects in aerospace, shipping, machinery, and other high-tech fields. |
format | Online Article Text |
id | pubmed-9086328 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90863282022-05-10 Self-curing triphenol A-based phthalonitrile resin precursor acts as a flexibilizer and curing agent for phthalonitrile resin Hu, Yue Weng, Zhihuan Qi, Yu Wang, Jinyan Zhang, Shouhai Liu, Cheng Zong, Lishuai Jian, Xigao RSC Adv Chemistry Major problems currently limiting the widespread application of phthalonitrile resins are the high precursor melting point and volatility of the curing agent. Herein, a novel self-curing triphenol A-based phthalonitrile resin precursor (TPPA-Ph) was successfully synthesized by reacting α,α,α′-tris(4-hydroxyphenyl)-1-ethyl-4-isopropylbenzene (TPPA) with 4-nitrophthalonitrile (NPh) via nucleophilic substitution. The presence of residual phenolic hydroxyl groups in the TPPA-Ph precursor promoted the curing reaction of phthalonitrile resin in the absence of an additional curing reagent. Self-cured TPPA-Ph resins exhibited relatively low melting points (less than 100 °C), high thermal stability, and a wide processing window (116 °C). Furthermore, the TPPA-Ph precursors contained phenolic hydroxyl and cyano groups that can be used as flexibilizers and curing agents to optimize other phthalonitrile resins. Resorcinol-based phthalonitrile resin (DPPH) cured with various amounts of TPPA-Ph possessed excellent thermal and thermo-oxidative stability with a 5% weight loss temperature exceeding 530 °C, T(g)s above 380 °C, and a wide processing window and time. Therefore, as a novel precursor and curing agent for phthalonitrile resins, the triphenol A-based phthalonitrile resin is an ideal resin matrix for high-performance composites with broad application prospects in aerospace, shipping, machinery, and other high-tech fields. The Royal Society of Chemistry 2018-09-24 /pmc/articles/PMC9086328/ /pubmed/35547674 http://dx.doi.org/10.1039/c8ra06926c Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Hu, Yue Weng, Zhihuan Qi, Yu Wang, Jinyan Zhang, Shouhai Liu, Cheng Zong, Lishuai Jian, Xigao Self-curing triphenol A-based phthalonitrile resin precursor acts as a flexibilizer and curing agent for phthalonitrile resin |
title | Self-curing triphenol A-based phthalonitrile resin precursor acts as a flexibilizer and curing agent for phthalonitrile resin |
title_full | Self-curing triphenol A-based phthalonitrile resin precursor acts as a flexibilizer and curing agent for phthalonitrile resin |
title_fullStr | Self-curing triphenol A-based phthalonitrile resin precursor acts as a flexibilizer and curing agent for phthalonitrile resin |
title_full_unstemmed | Self-curing triphenol A-based phthalonitrile resin precursor acts as a flexibilizer and curing agent for phthalonitrile resin |
title_short | Self-curing triphenol A-based phthalonitrile resin precursor acts as a flexibilizer and curing agent for phthalonitrile resin |
title_sort | self-curing triphenol a-based phthalonitrile resin precursor acts as a flexibilizer and curing agent for phthalonitrile resin |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9086328/ https://www.ncbi.nlm.nih.gov/pubmed/35547674 http://dx.doi.org/10.1039/c8ra06926c |
work_keys_str_mv | AT huyue selfcuringtriphenolabasedphthalonitrileresinprecursoractsasaflexibilizerandcuringagentforphthalonitrileresin AT wengzhihuan selfcuringtriphenolabasedphthalonitrileresinprecursoractsasaflexibilizerandcuringagentforphthalonitrileresin AT qiyu selfcuringtriphenolabasedphthalonitrileresinprecursoractsasaflexibilizerandcuringagentforphthalonitrileresin AT wangjinyan selfcuringtriphenolabasedphthalonitrileresinprecursoractsasaflexibilizerandcuringagentforphthalonitrileresin AT zhangshouhai selfcuringtriphenolabasedphthalonitrileresinprecursoractsasaflexibilizerandcuringagentforphthalonitrileresin AT liucheng selfcuringtriphenolabasedphthalonitrileresinprecursoractsasaflexibilizerandcuringagentforphthalonitrileresin AT zonglishuai selfcuringtriphenolabasedphthalonitrileresinprecursoractsasaflexibilizerandcuringagentforphthalonitrileresin AT jianxigao selfcuringtriphenolabasedphthalonitrileresinprecursoractsasaflexibilizerandcuringagentforphthalonitrileresin |