標題: Synthesis and characterization of hyperbranched aromatic poly(ether imide)s with terminal amino groups
作者: Chang, YT
Shu, CF
Leu, CM
Wei, KH
材料科學與工程學系
應用化學系
Department of Materials Science and Engineering
Department of Applied Chemistry
關鍵字: AB(2) monomer;degree of branching;hyperbranched;nanocomposites;poly(ether imide);TEM
公開日期: 1-Dec-2003
摘要: We synthesized an AB(2)-type monomer, 4-{4-[di(4-aminophenyl)methyl]-phenoxy}phthalic acid, which contained one phthalic acid group and two aminophenyl. functionalities. The direct self-polycondensation of the AB(2)-type monomer in the presence of triphenylphosphite as an activator afforded a hyperbranched poly(ether imide) with a large number of terminal amino groups. This polymer was characterized with H-1 NMR and IR spectroscopy. The degree of branching of the hyperbranched poly(ether imide) was approximately 56%, as determined by a combination of model compound studies and an analysis of H-1 NMR spectroscopy integration data. The terminal amino groups underwent functionalization readily. The solubility and thermal properties of the resulting polymers depended on the nature of the chain end groups. In addition, the hyperbranched poly(ether imide) was grafted with polyhedral oligomeric silsesquioxane (POSS). Transmission electron microscopy analysis revealed that the grafted POSS molecules aggregated to form a nanocomposite material. (C) 2003 Wiley Periodicals, Inc.
URI: http://dx.doi.org/10.1002/pola.10939
http://hdl.handle.net/11536/27349
ISSN: 0887-624X
DOI: 10.1002/pola.10939
期刊: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume: 41
Issue: 23
起始頁: 3726
結束頁: 3735
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