標題: Synthesis and characterization of soluble poly(ether imide)s based on 2,2 '-bis(4-aminophenoxy)-9,9 '-spirobifluorene
作者: Reddy, DS
Chou, CH
Shu, CF
Lee, GH
應用化學系
Department of Applied Chemistry
關鍵字: organosoluble;polyimides;spirobifluorene
公開日期: 1-Feb-2003
摘要: A series of aromatic poly(ether imide)s containing 9,9'-spirobifluorene moieties in the main chain have been synthesized via the polycondensation of 2,2'-bis(4-aminophenoxy)-9,9'-spirobifluorene with a variety of aromatic dianhydrides. In the diamine monomer, the two aminophenoxyfluorene entities are orthogonally arranged and are connected through an sp(3) carbon atom (the spiro center). The resulting poly(ether imide)s have a polymer backbone which is periodically twisted with an angle of 90degrees at each spiro center. This structural feature, which restricts the close packing of the polymer chains and reduces inter-chain interactions, leads to amorphous poly(ether imide)s with good solubility in common organic solvents. In addition, the rigidity of the main chain of these polymers appears to be preserved due to the spiro-structure. As a result, these poly(ether imide)s exhibit a high T-g and excellent thermal stability. (C) 2002 Elsevier Science Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/S0032-3861(02)00828-5
http://hdl.handle.net/11536/28114
ISSN: 0032-3861
DOI: 10.1016/S0032-3861(02)00828-5
期刊: POLYMER
Volume: 44
Issue: 3
起始頁: 557
結束頁: 563
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