Benzotriazole-based conjugated microporous polymers as efficient flame retardants with better thermal insulation properties | |
Wei, Huijuan1; Wang, Fei1; Sun, Hanxue1; Zhu, Zhaoqi1; Xiao, Chaohu2; Liang, Weidong2; Yang, Baoping1; Chen, Lihua1,2; Li, An1 | |
刊名 | Journal of Materials Chemistry A
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2018 | |
卷号 | 6期号:18页码:8633-8642 |
关键词 | Conjugated polymers Flame retardants Heat transfer Microporosity Rigid structures Thermal conductivity |
ISSN号 | 20507488 |
DOI | 10.1039/c7ta11283a |
英文摘要 | The development of high performance flame retardant materials with better thermal insulation properties is of great importance for saving energy in modern building construction. Herein, we report for the first time the synthesis of novel conjugated microporous polymers (CMPs) using monomers containing a benzotriazole moiety as building blocks via Sonogashira-Hagihara cross-coupling polymerization. The synthesized ZCMPs show high thermal stability with a decomposition temperature above 330 °C and high specific surface area up to 691 m2 g-1. The resulting CMP samples possess excellent flame retardancy with a peak heat release rate (pHRR) as low as 9.9 W g-1, which is nearly one order of magnitude lower than those of many traditional polymeric flame retardants reported previously. Also, they also show better thermal insulation properties with a thermal conductivity of ca. 0.03 W m-1 K-1 in air. More importantly, the introduction of a benzotriazole moiety into CMPs could generate nitrogen (a "green" gas compared with many flame retardants) to produce a flame-retardant effect. In addition, the rigid porous structure of CMPs could nearly remain to form a carbon layer as a barrier to block oxygen, mass, and heat transfer to the substrate when it undergoes high temperature treatment. Considering the advantages mentioned above, CMPs may hold great potential for future thermal insulation and flame retardant applications. © 2018 The Royal Society of Chemistry. |
WOS研究方向 | Chemistry ; Energy & Fuels ; Materials Science |
语种 | 英语 |
出版者 | Royal Society of Chemistry |
WOS记录号 | WOS:000434624800055 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/151203] ![]() |
专题 | 设计艺术学院 石油化工学院 图书馆 |
作者单位 | 1.College of Petrochemical Technology, School of Material Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Experimental Center, Northwest University for Nationalities, Lanzhou; 730030, China |
推荐引用方式 GB/T 7714 | Wei, Huijuan,Wang, Fei,Sun, Hanxue,et al. Benzotriazole-based conjugated microporous polymers as efficient flame retardants with better thermal insulation properties[J]. Journal of Materials Chemistry A,2018,6(18):8633-8642. |
APA | Wei, Huijuan.,Wang, Fei.,Sun, Hanxue.,Zhu, Zhaoqi.,Xiao, Chaohu.,...&Li, An.(2018).Benzotriazole-based conjugated microporous polymers as efficient flame retardants with better thermal insulation properties.Journal of Materials Chemistry A,6(18),8633-8642. |
MLA | Wei, Huijuan,et al."Benzotriazole-based conjugated microporous polymers as efficient flame retardants with better thermal insulation properties".Journal of Materials Chemistry A 6.18(2018):8633-8642. |
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