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	Syntheses and properties of polyimides derived from 2,5-bis(4-aminophenyl)pyrimidine
	Xia Aixiang; Lu Guanghua; Qiu Xuepeng; Ding Mengxian; Gao Lianxun
刊名	Acta polymerica sinica
	2007-03-01
期号	3页码:262-266
关键词	Polyimides Pyrimidine Thermal property Mechanical property
ISSN号	1000-3304
通讯作者	Xia aixiang()
英文摘要	Aromatic diamine 4 containing 2,5-disubstituted pyrimidine structure was synthesized via a condensation reaction of vinamidium salts and amidine chloride salts, followed by bydrazine palladium catalyzed reduction. a series of homo- and co-polyimides containing pyrimidine units were prepared from the diamine and 1,4-phenylenediamine (pda) with pyromellitic dianhydride (pmda) or 3,3',4,4'-biphenyl tertracarboxylic dianhydride (bpda) via a conventional two-step thermal imidizaton method. all of the polyimides showed excellent thermal stability and mechanical properties. the glass transition temperatures of the resulting polymides are in the range of 28.0 similar to 437 degrees c, and the 5 % weight loss temperatures are in the range of 545 similar to 588 degrees c in air. the polyimides films possess strength at break in the range of 185 similar to 282 mpa, elongations at break in the range of 9.1 % similar to 51 % and tensile modulus in the range of 3.5 similar to 6.46 gpa. the polymer films are insoluble in common organic solvents exhibiting high chemical resistance.
WOS关键词	SOLUBLE POLYIMIDES ; HEAT-RESISTANT ; BEHAVIOR ; SALTS
WOS研究方向	Polymer Science
WOS类目	Polymer Science
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000245189900010
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2381602
专题	中国科学院大学
通讯作者	Xia Aixiang
作者单位	1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xia Aixiang,Lu Guanghua,Qiu Xuepeng,et al. Syntheses and properties of polyimides derived from 2,5-bis(4-aminophenyl)pyrimidine[J]. Acta polymerica sinica,2007(3):262-266.
APA	Xia Aixiang,Lu Guanghua,Qiu Xuepeng,Ding Mengxian,&Gao Lianxun.(2007).Syntheses and properties of polyimides derived from 2,5-bis(4-aminophenyl)pyrimidine.Acta polymerica sinica(3),262-266.
MLA	Xia Aixiang,et al."Syntheses and properties of polyimides derived from 2,5-bis(4-aminophenyl)pyrimidine".Acta polymerica sinica .3(2007):262-266.

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