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Title: | Synthesis and Characterization of Polyimide-Epoxy Hybrid Films |
Authors: | MUHAMMAD SAEED BUTT ZAREEN AKHTER MUHAMMAD ZAFAR-UZ ZAMAN HUMAIRA MASOOD SIDDIQI MUHAMMAD SHOAIB |
Issue Date: | 5-Feb-2011 |
Publisher: | Karachi: International Centre for Chemical and Biological Sciences, H.E.J. Research Institute of Chemistry, University of Karachi |
Citation: | ZAMAN, M. Z. U., Akhter, Z., BUTT, M. S., SHOAIB, M., & SIDDIQI, H. M. (2011). Synthesis and characterization of polyimide-epoxy hybrid films. Journal of the Chemical Society of Pakistan, 33(6), 43. |
Abstract: | Composites from polyimide and epoxy-amine were prepared aiming for enhancing its thermal and mechanical properties. Polyimide-epoxy-amine hybrid films were prepared by blending of polyimide and epoxy-amine in different ratios whereas, polyimide was prepared by reacting 1,2- di(p-aminophenyloxy)ethylene with ,34,4-benzophenone tetracrboxylic acid dianhydride. The blend systems with Araldite LY564 (1,4-butanediolediglycidyl ether) (BDDE) and Hardener HY2954 (3,3-dimethyl-4,4-diaminodicyclohexyl)methane (MACM) were investigated in term of thermal, mechanical and viscoelastic measurements. Thermal stability was determined using thermogravimetric analysis. The effect of the polyimide content on the glass transition temperature (Tg) and thermal stability was observed. Viscoelastic measurements showed that the glass transition temperature shifted with the increase of polyimide content. The composites showed higher thermal stability in comparison with neat epoxy-amine matrix for higher polyimide concentration. The effect of polyimide content on the mechanical properties was also investigated. The tensile measurements of the films showed that with the increase of polyimide content the tensile modulus of the films was increased. |
URI: | http://142.54.178.187:9060/xmlui/handle/123456789/19573 |
ISSN: | 0253-5106 |
Appears in Collections: | Issue 01 |
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