標題: A novel preparation of polyimide/clay hybrid films with low coefficient of thermal expansion
作者: Gu, AJ
Chang, FC
應用化學系
Department of Applied Chemistry
關鍵字: polyimide hybrids;coefficient of thermal expansion;montmorillonite;poly(amic acid) of salt;tetrahydrofuran;methanol
公開日期: 10-Jan-2001
摘要: A novel polyimide (PI)/clay hybrid nanocomposite, designated as PI (PAAS)/CM, has been developed from the poly(amic acid) salt of triethylamine and organomontmorillonite (CM) using a mixture solution of tetrahydrofuran (THF) and methanol (MeOH). For comparison, two other PI/clay hybrids derived from poly(amic acid) and CM in THF/MeOH solution and N,N'-dimethylacetamide (DMAc) solution, denoted as PI/CM (T/M) and PI/CM (DMAc), respectively, were also prepared. Dispersion of CM in polymer matrix, tensile properties, and thermal expansion properties of the three hybrids were investigated. Results show that PI (PAAS)/CM has the best dispersion of CM in polymer matrix, highest elongation, and lowest coefficient of thermal expansion values in all hybrids presented in this report. In addition, PI/CM (T/M) has better dispersion of CM and lower coefficient of thermal expansion value than PI/CM (DMAc). (C) 2000 John Wiley & Sons, Inc.
URI: http://hdl.handle.net/11536/29900
http://dx.doi.org/10.1002/1097-4628(20010110)79:2<289
ISSN: 0021-8995
DOI: 10.1002/1097-4628(20010110)79:2<289
期刊: JOURNAL OF APPLIED POLYMER SCIENCE
Volume: 79
Issue: 2
起始頁: 289
結束頁: 294
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