Synthesis and properties of novel polyimides derived from 2,2 ',3,3 '-benzophenonetetracarboxylic dianhydride

	Synthesis and properties of novel polyimides derived from 2,2 ',3,3 '-benzophenonetetracarboxylic dianhydride
	Fang XZ ; Li QX ; Wang Z ; Yang ZH ; Gao LX ; Ding MX
刊名	journal of polymer science part a-polymer chemistry
	2004
卷号	42 期号:9 页码:2130-2144
关键词	ISOMERIC BIPHENYLTETRACARBOXYLIC DIANHYDRIDES AROMATIC POLYIMIDES THIAPHTHALIC DIANHYDRIDE MOLECULAR-STRUCTURE GAS-PERMEABILITY POLYMERS DIAMINES FILMS OXYDIANILINE TEMPERATURE
ISSN号	0887-624x
通讯作者	ding mx
中文摘要	a new synthetic route to 2,2',3,3'-btda (where btda is benzophenonetetracarboxylic dianhydride), an isomer of 2,3',3',4'-btda and 3,3',4,4'-btda, is described. single-crystal x-ray diffraction analysis of 2,2',3,3'-btda has shown that this dianhydride has a bent and noncoplanar structure. the polymerizations of 2,2',3,3'-btda with 4,4'-oxydianiline (oda) and 4,4'-bis(4-aminophenoxy)benzene (tpeq) have been investigated with a conventional two-step process. a trend of cyclic oligomers forming in the reaction of 2,2',3,3'-btda and oda has been found and characterized with ir, nmr, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, and elemental analyses. films based on 2,2',3,3'-btda/tpeq can only be obtained from corresponding polyimide (pi) solutions prepared by chemical imidization because those from their polyamic acids by thermal imidization are brittle. pis from 2,2',3,3'-btda have lower inherent viscosities and worse thermal and mechanical properties than the corresponding 2,3',3',4'-btda- and 3,3',4,4'-btda-based pis. pis from 2,2',3,3'-btda and 2,3',3',4'-btda are amorphous, whereas those from 3,3',4,4'-btda have some crystallinity, according to wide-angle x-ray diffraction.
收录类别	SCI
语种	英语
WOS记录号	WOS:000220851800010
公开日期	2010-08-17
内容类型	期刊论文
源URL	[http://202.98.16.49/handle/322003/15153]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Fang XZ,Li QX,Wang Z,et al. Synthesis and properties of novel polyimides derived from 2,2 ',3,3 '-benzophenonetetracarboxylic dianhydride[J]. journal of polymer science part a-polymer chemistry,2004,42(9):2130-2144.
APA	Fang XZ,Li QX,Wang Z,Yang ZH,Gao LX,&Ding MX.(2004).Synthesis and properties of novel polyimides derived from 2,2 ',3,3 '-benzophenonetetracarboxylic dianhydride.journal of polymer science part a-polymer chemistry,42(9),2130-2144.
MLA	Fang XZ,et al."Synthesis and properties of novel polyimides derived from 2,2 ',3,3 '-benzophenonetetracarboxylic dianhydride".journal of polymer science part a-polymer chemistry 42.9(2004):2130-2144.