Synthesis and properties of novel soluble polyimides having a spirobisindane-linked dianhydride unit

	Synthesis and properties of novel soluble polyimides having a spirobisindane-linked dianhydride unit
	Zhang QY ; Chen G ; Zhang SB
刊名	polymer
	2007
卷号	48 期号:8 页码:2250-2256
关键词	LOW DIELECTRIC-CONSTANTS POLYALICYCLIC STRUCTURE COLORLESS POLYIMIDES THERMAL-PROPERTIES ALICYCLIC DIAMINES MAIN-CHAIN TRANSITIONS POLYAMIDES ADAMANTANE MOIETIES
ISSN号	0032-3861
通讯作者	zhang sb
中文摘要	a new synthetic procedure was elaborated allowing the preparation of semiaromatic dianhydride. n-methyl protected 4-chlorophthalic anhydride was nitrated with hno3 to produce n-methyl-4-chloro-5-nitrophthalimide (1). the aromatic nucleophilic substitution reaction between 5,5',6,6'-tetrahydroxy-3,3,3',3'-tetramethyl-1,1-spirobisindane and 1 afforded spirobisindane-linked bis(n-methylphthalimide) (2), which was hydrolyzed and subsequently dehydrated to give the corresponding dianhydride (3). the latter was polymerized with five different aromatic diamines to afford a series of aromatic polyimides. the properties of polyimides such as inherent viscosity, solubility, uv transparency and thermal stability were investigated to illustrate the contribution of the introduction of spirobisindane groups into the polyimide backbone. the resulting polyimides were readily soluble in polar solvents such as chloroform, thf and n-methyl-2-pyrrolidone. the glass-transition temperatures of these polyimides were in the range of 254-292 degrees c. the tensile strength, elongation at break, and young's modulus of the polyimide film were 68.8-106.6 mpa, 5.9-9.8%, 1.7-2.0 gpa, respectively. the polymer films were colorless and transparent with the absorption cutoff wavelength at 286-308 nm.
收录类别	SCI
语种	英语
WOS记录号	WOS:000246330200009
公开日期	2010-07-13
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/13775]
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	Zhang QY,Chen G,Zhang SB. Synthesis and properties of novel soluble polyimides having a spirobisindane-linked dianhydride unit[J]. polymer,2007,48(8):2250-2256.
APA	Zhang QY,Chen G,&Zhang SB.(2007).Synthesis and properties of novel soluble polyimides having a spirobisindane-linked dianhydride unit.polymer,48(8),2250-2256.
MLA	Zhang QY,et al."Synthesis and properties of novel soluble polyimides having a spirobisindane-linked dianhydride unit".polymer 48.8(2007):2250-2256.