By Kash L. Mittal
This ebook is usually according to papers offered on the Fourth foreign Symposium in this subject held in Savannah, Georgia. even if, as well as those papers, convinced very appropriate papers have additionally been integrated to increase the scope and hence increase the worth of this book.
Currently there's super curiosity in those fabric as a result of their detailed houses and functions in various technological components starting from microelectronics to aerospace to adhesive bonding.
This e-book is split into 3 elements: half 1: Synthesis and Bulk Characterization; half 2: floor and Interface points (Composites and Metallization); and half three: purposes. the themes lined comprise: synthesis of a couple of polyimides with adapted homes; nanocomposites for high-performance purposes; molecular meeting of polyimides; polyimide L-B motion pictures; metallization of polyimides; functions of hot temperature polymers as proton alternate membranes; dielectrics, and in cloth.
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Extra resources for Polyimides and other high temperature polymers: synthesis, characterization, and applications. Volume 4
2. Reactions of ester-acid/amine compound pairs The mono-functional PAMe/aniline (3), having the structure most similar to PEAS, was employed as the ester-acid/amine model compound pair to simulate the imidization process of the PEAS precursor in the solid state. To best mimic the reactions of the PEAS, this model pair was also thermally treated in the solid state in the absence of solvents. After thermal treatment similar to that used for the BTDMe-ODA-based PEAS precursor, the samples of compound pair 3 displayed the FT-IR absorption spectra as given in Fig.
11. 09. BI-2 was prepared by TI of 1,3-bis-(3,3’,4,4’-dicarboxyphenoxy)benzene dianilide. Anal. 07. 01. BI-3 was prepared either by TI of bis(phthalamido)acid which was obtained via the interaction of 4,4'-bis-(4-aminophenoxy)biphenyl with phthalic anhydride in NMP or by CI via adding the pyridine–acetic anhydride mixture to obtain an imide-containing BI-3. Anal. 49. 41. PI/BI blends were prepared by adding 10 wt% of the corresponding BI in a fine powder form to a stirred PAA solution, which was thermally imidized.
Petersburg, Russia 2 Casali Institute of Applied Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel Abstract—This study introduces a novel crystallization behavior of low-molecular-weight bisimides (BIs) based on 4,4'-bis-(4-aminophenoxy)biphenyl diamine and 1,3-bis-(3,3’,4,4’-dicarboxyphenoxy)benzene dianhydride, and their blends with the semicrystalline polyimide (PI) of the related chemical structure. The supermolecular structure, morphology and phase transitions were examined by WAXD, SEM, DSC and hot-stage polarized-light microscopy.