Synthesis and characterization of hyperbranched aromatic poly(ester-imide)s
Li, XR; Li, YS
Source PublicationPOLYMER
AbstractThe synthesis and characterization of hyperbranched aromatic poly(ester-imide)s are described. A variety of AB(2) monomers, N-[3- or 4-bis(4-acetoxyphenyl)toluoyl]-4-carboxyl-phthalimide and N-{3- or 4-[1,1-bis(4-acetooxyphenyl)]ethylphenyl}-4-carboxy phthalimides were prepared starting from condensation of nitrobenzaldehydes or nitroacetophenones with phenol and used for synthesis of hyperbranched poly(ester-imide)s containing terminal acetyl groups by transesterification reaction. These hyperbranched poly(ester-imide)s were produced with weight-average molecular weight of up to 6.87 g/mol. Analysis of H-1 NMR and C-13 NMR spectroscopy revealed the structure of the four hyperbranched poly(ester-imide)s. These hyperbranched poly(ester-imide)s exhibited excellent solubility in a variety of solvents such as N,N-dimethylacetamide, dimethyl sulfoxide, and tetrahydrofuran and showed glass-transition temperatures between 217 and 255 degreesC. The thermogravimetric analytic measurement revealed the decomposition temperature at 10% weight-loss temperature (T-d(10)) ranging from 365 to 416 degreesC in nitrogen. (C) 2003 Elsevier Science Ltd. All rights reserved.
KeywordHyperbranched Poly(Ester-imide)s Ab(2) Monomer
Indexed BySCI
WOS IDWOS:000183596800011
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Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLi, YS
AffiliationChinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Li, XR,Li, YS. Synthesis and characterization of hyperbranched aromatic poly(ester-imide)s[J]. POLYMER,2003,44(14):3855-3863.
APA Li, XR,&Li, YS.(2003).Synthesis and characterization of hyperbranched aromatic poly(ester-imide)s.POLYMER,44(14),3855-3863.
MLA Li, XR,et al."Synthesis and characterization of hyperbranched aromatic poly(ester-imide)s".POLYMER 44.14(2003):3855-3863.
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