Conjugated microporous polymer foams with excellent thermal insulation performance in a humid environment

doi:10.1039/d1ra01616d

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Conjugated microporous polymer foams with excellent thermal insulation performance in a humid environment
	Feng, Nianyun 1; Wu, Shujuan 2; Song, Danna 1; Li, Yimeng 1; Lu, Naijia 1; Sun, Lei 1; Yu, Tie 1; Li, An 2; Deng, Weiqiao 1
刊名	RSC ADVANCES
	2021
卷号	11 期号:23 页码:13957-13963
关键词	Chemical reactions Conjugated polymers Electric circuit breakers Microporosity Pore structure Silicon Superhydrophobicity Thermal conductivity Conjugated microporous polymers Cross coupling reactions High-humidity environment Humidity conditions Insulation performance Low thermal conductivity Mechanical stirring Physico-chemical stability
DOI	10.1039/d1ra01616d
英文摘要	This work reported two monolithic conjugated microporous polymer (CMP) foams synthesized through the Sonogashira-Hagihara cross-coupling reaction without mechanical stirring. The as-synthesized (CMP-ED and CMP-PT) foams exhibited superior hydrophobicity and low apparent density of 58 mg cm(-3) and 63 mg cm(-3). In addition, CMP-ED displayed a low thermal conductivity of 34.04 mW m(-1) K-1, which was comparable with commercial SiO2 aerogels (34.09 mW m(-1) K-1) at 50% humidity conditions. When the environment humidity was raised from 50% to 70%, the thermal conductivity of CMP-ED and commercial SiO2 aerogels improved by 0.12% and 7%, respectively. Furthermore, XRD, FTIR, BET and TG were conducted to evaluate the bulk structure and stability of CMP-ED and CMP-PT. The results illustrated the thermal conductivity values were greatly affected by the pore structure of foams. And the strong hydrophobicity and the narrow pore structure were responsible for the good thermal insulation performance under humid conditions. Considering the low density, superhydrophobicity, excellent physicochemical stability and impervious thermal conductivity in a high humidity environment, this CMP-ED presented great potential as an insulating material in a humid environment.
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000641127700031
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148242]
专题	土木工程学院石油化工学院
作者单位	1.Shandong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266200, Peoples R China; 2.Lanzhou Univ Technol, Coll Petrochem Technol, Langongping Rd 287, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Feng, Nianyun,Wu, Shujuan,Song, Danna,et al. Conjugated microporous polymer foams with excellent thermal insulation performance in a humid environment[J]. RSC ADVANCES,2021,11(23):13957-13963.
APA	Feng, Nianyun.,Wu, Shujuan.,Song, Danna.,Li, Yimeng.,Lu, Naijia.,...&Deng, Weiqiao.(2021).Conjugated microporous polymer foams with excellent thermal insulation performance in a humid environment.RSC ADVANCES,11(23),13957-13963.
MLA	Feng, Nianyun,et al."Conjugated microporous polymer foams with excellent thermal insulation performance in a humid environment".RSC ADVANCES 11.23(2021):13957-13963.