Synthesis and properties of novel polyimides derived from 2,6-bis(4-aminophenoxy-4 '-benzoyl)pyridine with some of dianhydride monomers

doi:10.1016/j.polymer.2005.10.003

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	Synthesis and properties of novel polyimides derived from 2,6-bis(4-aminophenoxy-4 '-benzoyl)pyridine with some of dianhydride monomers
	Zhang, SJ ; Li, YF ; Wang, XL ; Zhao, X ; Shao, Y ; Yin, DX ; Yang, SY
刊名	POLYMER
	2005-11-28
卷号	46 期号:25 页码:11986-11993
关键词	Pyridine-containing Polyimides Synthesis Thermostablity
ISSN号	0032-3861
DOI	10.1016/j.polymer.2005.10.003
英文摘要	A new kind of aromatic diamine monomer containing pyridine unit, 2,6-bis(4-aminophenoxy-4 '-benzoyl)pyridine (BABP), was synthesized successfully. The Friedel-Crafts acylation of phenyl ethyl ether with 2,6-pyridinedicarbonyl chloride formed 2,6-bis(4,4 '-dihydroxybenzoyl)-pyridine (BHBP), BHBP was changed into 2,6-bis(4-nitrophenoxy-4'-benzoyl)-pyridine (BNBP) by the nucleophilic substitution reaction of it and p-chloronitrobenzene, and BNBP was reduced with SnCl, and HCl in ethanol to form the diamine monomer BABP finally, the diamine monomer BABP could be obtained in quantitative yield. A series of novel polyimides were prepared by polycondensation of BABP with various aromatic dianhydrides in N-methy-2-pyrrolidone (NMP) via the conventional two-step method. Experimental results indicated that some of the polyimides were soluble both in strong dipolar solvents (N-methy-2-pyrrolidone or N,N-dimethylacetamide) and in common organic solvents tetrahydrofuran. The resulting polyimides showed exceptional thermal and thermooxidative stability, no weight loss was detected before a temperature of 450 degrees C in nitrogen, and the values of glass-transition temperature of them were in the range of 208-324 degrees C. Wide-angle X-ray diffraction measurements revealed that these polyimides were predominantly amorphous. (c) 2005 Elsevier Ltd. All rights reserved.
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000233733700095
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/57383]
专题	中国科学院化学研究所
通讯作者	Li, YF
作者单位	1.Lanzhou Univ, State Key Lab Appl Organ Chem, Coll Chem & Chem Engn, Inst Biochem Engn & Environm Technol, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Zhang, SJ,Li, YF,Wang, XL,et al. Synthesis and properties of novel polyimides derived from 2,6-bis(4-aminophenoxy-4 '-benzoyl)pyridine with some of dianhydride monomers[J]. POLYMER,2005,46(25):11986-11993.
APA	Zhang, SJ.,Li, YF.,Wang, XL.,Zhao, X.,Shao, Y.,...&Yang, SY.(2005).Synthesis and properties of novel polyimides derived from 2,6-bis(4-aminophenoxy-4 '-benzoyl)pyridine with some of dianhydride monomers.POLYMER,46(25),11986-11993.
MLA	Zhang, SJ,et al."Synthesis and properties of novel polyimides derived from 2,6-bis(4-aminophenoxy-4 '-benzoyl)pyridine with some of dianhydride monomers".POLYMER 46.25(2005):11986-11993.