Benzotriazole-based conjugated microporous polymers as efficient flame retardants with better thermal insulation properties

doi:10.1039/c7ta11283a

IR > 设计艺术学院

	Benzotriazole-based conjugated microporous polymers as efficient flame retardants with better thermal insulation properties
	Wei, Huijuan 1; Wang, Fei1 ; Sun, Hanxue1 ; Zhu, Zhaoqi1 ; Xiao, Chaohu 2; Liang, Weidong 2; Yang, Baoping1 ; Chen, Lihua 2; Li, An1
	2018
发表期刊	Journal of Materials Chemistry A
ISSN	20507488
卷号	6 期号:18 页码:8633-8642
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.
关键词	Conjugated polymers Flame retardants Heat transfer Microporosity Rigid structures Thermal conductivity
DOI	10.1039/c7ta11283a
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
WOS类目	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS记录号	WOS:000434624800055
出版者	Royal Society of Chemistry
EI入藏号	20182005200429
EI主题词	Thermal insulation
EI分类号	408 Structural Design ; 413.2 Heat Insulating Materials ; 641.1 Thermodynamics ; 641.2 Heat Transfer ; 803 Chemical Agents and Basic Industrial Chemicals ; 815.1.1 Organic Polymers ; 931.2 Physical Properties of Gases, Liquids and Solids
引用统计	被引频次：42[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/151203
专题	设计艺术学院石油化工学院图书馆
通讯作者	Chen, Lihua; Li, An
作者单位	1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Coll Petrochem Technol, Lanzhou 730050, Gansu, Peoples R China; 2.Northwest Univ Nationalities, Expt Ctr, Lanzhou 730030, Gansu, Peoples R China
第一作者单位	材料科学与工程学院
通讯作者单位	材料科学与工程学院
第一作者的第一单位	材料科学与工程学院
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.