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گواهی نمایه سازی مقاله Synthesize and characterization of novel polyimide from 4,4 -(1,4-Phenylenediisopropylidene) bisaniline and aromatic tetracarboxylic dianhydride

عنوان مقاله: Synthesize and characterization of novel polyimide from 4,4 -(1,4-Phenylenediisopropylidene) bisaniline and aromatic tetracarboxylic dianhydride
شناسه (COI) مقاله: ISPST10_690
منتشر شده در دهمین سمینار بین المللی علوم و تکنولوژی پلیمر در سال ۱۳۹۱
مشخصات نویسندگان مقاله:

A Hasanzadeh - Department of Polymer Engineering, Sahand University of Technology, Tabriz, Iran. Composite material research center, Malek Ashtar University of Technology, Tehran, Iran
Abbas Moradi - Composite material research center, Malek Ashtar University of Technology, Tehran, Iran Polymer Engineering Group, South Tehran Branch, Islamic Azad University, Tehran, Iran
M Mortezaei - Composite material research center, Malek Ashtar University of Technology, Tehran, Iran
A Alihoseinzade - Department of Chemical Engineering, University of Tehran, Tehran, Iran.

خلاصه مقاله:
Polyimides, as a class of polymers, are well known for their good mechanical properties and stability under thermal stresses upwards of 500ºC [1]. Well-made polymer films ofthis type are also flexible, allowing for their use in a variety of parts of the spacecraft and extra-vehicular equipment likespacesuits [2]. In general, polymers containing aromatic (benzene-containing) backbones are stronger on the macroscopic level but relatively hydrogen deficient, whilealiphatic polymers (like polypropylene and polyethylene) have higher hydrogen contents, but are relatively weak and degradeeasily [3]. The present article deals with the synthesis of novel heatresistant aromatic polyimide by the polymerization of 4,4 -(1,4-Phenylenediisopropylidene) bisaniline with aromatictetracarboxylic dianhydride through a conventional two-step method. The characteristics of polyimides such as thermalbehavior are also discussed.

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