含氰基硅的芳基乙炔树脂及其复合材料的制备与表征:涉及物理界面相互作用和化学交联的双重增强策略

IF 4.1 2区 化学 Q2 POLYMER SCIENCE
Chao-En Jin, Hua-Mei Zhu, Lei Wang, Fan Wang, Ya-Ping Zhu, Shi-Feng Deng, Hui-Min Qi, Lei Du
{"title":"含氰基硅的芳基乙炔树脂及其复合材料的制备与表征:涉及物理界面相互作用和化学交联的双重增强策略","authors":"Chao-En Jin, Hua-Mei Zhu, Lei Wang, Fan Wang, Ya-Ping Zhu, Shi-Feng Deng, Hui-Min Qi, Lei Du","doi":"10.1007/s10118-024-3173-x","DOIUrl":null,"url":null,"abstract":"<p>Silicon-containing arylacetylene (PSA) resins have broad application prospects because of their excellent heat resistance. However, improving their mechanical properties and interfacial bonding with reinforcement fibers while maintaining heat resistance is a challenge in engineering applications. Here, poly(diethynylbenzene-methylsilyl-3-benzonitrile) (DEB-CN) and poly(diethynylbenzene-methylsilyl-3,6-diethynylcarbazole-3-benzonitrile) (DEC-CN) were synthesized <i>via</i> an isopropylmagnesium chloride lithium-chloride complex (<i>i</i>-PrMgCl·LiCl), overcoming the compatibility problem between cyano groups and Grignard reagents. The cyano and alkyne groups in the resin underwent cyclization to form pyridine, catalyzed by the -NH- moiety in DEC-CN, resulting in extremely high thermal stability (5% weight loss temperature: 669.3 °C, glass transition temperature &gt;650 °C). The combination of cyano dipole-dipole pairing and hydrogen bonding greatly enhanced the resin-fiber interface properties, while the generated pyridine promoted stress relief in the crosslinked network, substantially improving the mechanical properties of the cyano-silicon-containing arylacetylene resin composites. The flexural strength of quartz fiber cloth/DEC-CN composites was 298.2 MPa at room temperature and 145.9 MPa at 500 °C, corresponding to 84.0% and 127.6% enhancements, respectively, over the cyano-free counterpart. These cyano-silicon-containing arylacetylene resins exhibited a dual reinforcement mechanism involving physical interfacial interactions and chemical crosslinking, achieving a good balance between thermal stability and mechanical properties.</p>","PeriodicalId":517,"journal":{"name":"Chinese Journal of Polymer Science","volume":null,"pages":null},"PeriodicalIF":4.1000,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Preparation and Characterization of Cyano-Silicon-Containing Arylacetylene Resins and Their Composites: Dual Enhancement Strategy Involving Physical Interfacial Interactions and Chemical Crosslinking\",\"authors\":\"Chao-En Jin, Hua-Mei Zhu, Lei Wang, Fan Wang, Ya-Ping Zhu, Shi-Feng Deng, Hui-Min Qi, Lei Du\",\"doi\":\"10.1007/s10118-024-3173-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Silicon-containing arylacetylene (PSA) resins have broad application prospects because of their excellent heat resistance. However, improving their mechanical properties and interfacial bonding with reinforcement fibers while maintaining heat resistance is a challenge in engineering applications. Here, poly(diethynylbenzene-methylsilyl-3-benzonitrile) (DEB-CN) and poly(diethynylbenzene-methylsilyl-3,6-diethynylcarbazole-3-benzonitrile) (DEC-CN) were synthesized <i>via</i> an isopropylmagnesium chloride lithium-chloride complex (<i>i</i>-PrMgCl·LiCl), overcoming the compatibility problem between cyano groups and Grignard reagents. The cyano and alkyne groups in the resin underwent cyclization to form pyridine, catalyzed by the -NH- moiety in DEC-CN, resulting in extremely high thermal stability (5% weight loss temperature: 669.3 °C, glass transition temperature &gt;650 °C). The combination of cyano dipole-dipole pairing and hydrogen bonding greatly enhanced the resin-fiber interface properties, while the generated pyridine promoted stress relief in the crosslinked network, substantially improving the mechanical properties of the cyano-silicon-containing arylacetylene resin composites. The flexural strength of quartz fiber cloth/DEC-CN composites was 298.2 MPa at room temperature and 145.9 MPa at 500 °C, corresponding to 84.0% and 127.6% enhancements, respectively, over the cyano-free counterpart. These cyano-silicon-containing arylacetylene resins exhibited a dual reinforcement mechanism involving physical interfacial interactions and chemical crosslinking, achieving a good balance between thermal stability and mechanical properties.</p>\",\"PeriodicalId\":517,\"journal\":{\"name\":\"Chinese Journal of Polymer Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.1000,\"publicationDate\":\"2024-08-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Chinese Journal of Polymer Science\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1007/s10118-024-3173-x\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"POLYMER SCIENCE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chinese Journal of Polymer Science","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1007/s10118-024-3173-x","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0

摘要

含硅芳基乙炔(PSA)树脂因其出色的耐热性而具有广阔的应用前景。然而,在工程应用中,如何在保持耐热性的同时改善其机械性能以及与增强纤维的界面粘结性是一项挑战。本文通过异丙基氯化镁锂-氯化络合物(i-PrMgCl-LiCl)合成了聚(二乙炔基苯-甲基硅基-3-苯腈)(DEB-CN)和聚(二乙炔基苯-甲基硅基-3,6-二炔基咔唑-3-苯腈)(DEC-CN),克服了氰基与格氏试剂之间的相容性问题。在 DEC-CN 中的 -NH- 分子催化下,树脂中的氰基和炔基发生环化反应生成吡啶,从而获得极高的热稳定性(5% 失重温度:669.3 °C,玻璃化温度:650 °C)。氰基偶极-偶极配对和氢键的结合大大提高了树脂-纤维界面的性能,而生成的吡啶促进了交联网络中的应力释放,从而大幅改善了含氰基硅的芳基乙炔树脂复合材料的机械性能。石英纤维布/DEC-CN 复合材料的室温抗弯强度为 298.2 兆帕,500 °C 时为 145.9 兆帕,与不含氰基的材料相比,分别提高了 84.0% 和 127.6%。这些含氰基硅的芳基乙炔树脂表现出物理界面相互作用和化学交联的双重增强机制,在热稳定性和机械性能之间实现了良好的平衡。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Preparation and Characterization of Cyano-Silicon-Containing Arylacetylene Resins and Their Composites: Dual Enhancement Strategy Involving Physical Interfacial Interactions and Chemical Crosslinking

Silicon-containing arylacetylene (PSA) resins have broad application prospects because of their excellent heat resistance. However, improving their mechanical properties and interfacial bonding with reinforcement fibers while maintaining heat resistance is a challenge in engineering applications. Here, poly(diethynylbenzene-methylsilyl-3-benzonitrile) (DEB-CN) and poly(diethynylbenzene-methylsilyl-3,6-diethynylcarbazole-3-benzonitrile) (DEC-CN) were synthesized via an isopropylmagnesium chloride lithium-chloride complex (i-PrMgCl·LiCl), overcoming the compatibility problem between cyano groups and Grignard reagents. The cyano and alkyne groups in the resin underwent cyclization to form pyridine, catalyzed by the -NH- moiety in DEC-CN, resulting in extremely high thermal stability (5% weight loss temperature: 669.3 °C, glass transition temperature >650 °C). The combination of cyano dipole-dipole pairing and hydrogen bonding greatly enhanced the resin-fiber interface properties, while the generated pyridine promoted stress relief in the crosslinked network, substantially improving the mechanical properties of the cyano-silicon-containing arylacetylene resin composites. The flexural strength of quartz fiber cloth/DEC-CN composites was 298.2 MPa at room temperature and 145.9 MPa at 500 °C, corresponding to 84.0% and 127.6% enhancements, respectively, over the cyano-free counterpart. These cyano-silicon-containing arylacetylene resins exhibited a dual reinforcement mechanism involving physical interfacial interactions and chemical crosslinking, achieving a good balance between thermal stability and mechanical properties.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Chinese Journal of Polymer Science
Chinese Journal of Polymer Science 化学-高分子科学
CiteScore
7.10
自引率
11.60%
发文量
218
审稿时长
6.0 months
期刊介绍: Chinese Journal of Polymer Science (CJPS) is a monthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Qi-Feng Zhou and supported by an International Advisory Board in which many famous active polymer scientists all over the world are included. The journal was first published in 1983 under the title Polymer Communications and has the current name since 1985. CJPS is a peer-reviewed journal dedicated to the timely publication of original research ideas and results in the field of polymer science. The issues may carry regular papers, rapid communications and notes as well as feature articles. As a leading polymer journal in China published in English, CJPS reflects the new achievements obtained in various laboratories of China, CJPS also includes papers submitted by scientists of different countries and regions outside of China, reflecting the international nature of the journal.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信