ICCAS OpenIR
Syntheses and properties of soluble biphenyl-based polyimides from asymmetric bis(chlorophthalimide)s
Gao, CL; Wu, X; Lv, GH; Ding, MX; Gao, LX
2004-04-20
Source PublicationMACROMOLECULES
ISSN0024-9297
Volume37Issue:8Pages:2754-2761
AbstractA novel synthesis of asymmetric bis(chlorophthalimide)s (3,4-BCPIs) has been established. The polymerizations of them produced higher molecular weight (0.38-0.51 dL/g) polyimides containing biphenyl units than those of isomeric polymers derived from symmetric bis(chlorophthalimide)s (4,4'-BCPIs) and 3,3'-BCPIs. The distribution of the formed biphenyl units of head to tail, head to head, and tail to tail in the chain of the polymers was about 58.0:21.0:21.0, determined by C-13 NMR spectra of the polymers. The composition of model compounds, determined by HPLC, was well consistent with the 13C NMR spectrum result. Comparing with polymers derived from 4,4'-BCPIs and 3,3'-BCPIs, the polymers derived from 3,4-BCPIs showed better solubilities in N,N-dimethylacetamide (DMAc), N,N-dimethyl-formamide (DMF), and N-methylpyrrolinone (NMP). Flexible films could be cast from the polymer solution with the inherent viscosities of above 0.35 dL/g. The polymer derived from asymmetric bis(chlorophthimide)s gave the highest T-g among the isomeric polymers. The 10% weight loss of these polyimides was above 549 degreesC.
DOI10.1021/ma0350720
Indexed BySCI
Language英语
WOS IDWOS:000220898600014
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:41[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82376
Collection中国科学院化学研究所
Corresponding AuthorGao, LX
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, Polymer Phys Lab, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Gao, CL,Wu, X,Lv, GH,et al. Syntheses and properties of soluble biphenyl-based polyimides from asymmetric bis(chlorophthalimide)s[J]. MACROMOLECULES,2004,37(8):2754-2761.
APA Gao, CL,Wu, X,Lv, GH,Ding, MX,&Gao, LX.(2004).Syntheses and properties of soluble biphenyl-based polyimides from asymmetric bis(chlorophthalimide)s.MACROMOLECULES,37(8),2754-2761.
MLA Gao, CL,et al."Syntheses and properties of soluble biphenyl-based polyimides from asymmetric bis(chlorophthalimide)s".MACROMOLECULES 37.8(2004):2754-2761.
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