Synthesis and characterization of hyperbranched aromatic poly(ether imide)s
Li, XR; Li, YS; Tong, YJ; Shi, LQ; Liu, XH
Source PublicationMACROMOLECULES
AbstractThe four AB(2) monomers, N-[3- or 4-bis(4-hydroxyphenyl)toluoyl]-4-chlorophthalimide and N-{3- or 4-[1,1-bis(4-hydroxyphenyl)]ethylphenyl}-4-chlorophthalimides, were prepared and used for synthesis of hyperbranched poly(ether imide)s bearing hydroxyl end groups. These hyperbranched poly(ether imide)s had moderate molecular weights with broad distributions and showed glass-transition temperatures (Tgs) between 177 and 230 degreesC. The thermogravimetric analytic measurement revealed the decomposition temperature at 5% weight-loss temperatures (T-d(5%)) ranging from 240 to 281 degreesC. Analysis using H-1 NMR spectroscopy revealed the four types of hyperbranched poly(ether imide)s to have similar degrees of branching (ca. 60%). These polymers were modified by acylation or nucleophilic substitution reaction at the hydroxyl end groups. The conversion effectiveness depended on the type of modification reaction, modifier, and reaction conditions. The thermal stability and solubility of hyperbranched poly(ether imide)s were improved by the modification of the end groups.
Indexed BySCI
WOS IDWOS:000184398600016
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Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorLi, YS
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & chem, Changchun 130022, Peoples R China
2.Fujian Normal Univ, Dept Chem, Fuzhou 350007, Peoples R China
3.Nankai Univ, Inst Polymer Chem, Tianjin 300071, Peoples R China
Recommended Citation
GB/T 7714
Li, XR,Li, YS,Tong, YJ,et al. Synthesis and characterization of hyperbranched aromatic poly(ether imide)s[J]. MACROMOLECULES,2003,36(15):5537-5544.
APA Li, XR,Li, YS,Tong, YJ,Shi, LQ,&Liu, XH.(2003).Synthesis and characterization of hyperbranched aromatic poly(ether imide)s.MACROMOLECULES,36(15),5537-5544.
MLA Li, XR,et al."Synthesis and characterization of hyperbranched aromatic poly(ether imide)s".MACROMOLECULES 36.15(2003):5537-5544.
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