Witrynaimide: [noun] a compound containing the NH group that is derived from ammonia by replacement of two hydrogen atoms by a metal or an equivalent of acid groups — … WitrynaImidized materials are high performance plastics with a high service temperature. These can be considered for applications with an approximate maximum temperature of …
Plastic Material Selection Guide - Curbell Plastics
In organic chemistry, an imide is a functional group consisting of two acyl groups bound to nitrogen. The compounds are structurally related to acid anhydrides, although imides are more resistant to hydrolysis. In terms of commercial applications, imides are best known as components of high-strength … Zobacz więcej Most imides are cyclic compounds derived from dicarboxylic acids, and their names reflect the parent acid. Examples are succinimide, derived from succinic acid, and phthalimide, derived from phthalic acid. For … Zobacz więcej Many high strength or electrically conductive polymers contain imide subunits, i.e., the polyimides. One example is Kapton where the repeat unit consists of two imide … Zobacz więcej For imides derived from ammonia, the N–H center is weakly acidic. Thus, alkali metal salts of imides can be prepared by conventional bases such as potassium hydroxide. The conjugate base of phthalimide is potassium phthalimide. These anion … Zobacz więcej • Inorganic imide Zobacz więcej Being highly polar, imides exhibit good solubility in polar media. The N–H center for imides derived from ammonia is acidic and can … Zobacz więcej Most common imides are prepared by heating dicarboxylic acids or their anhydrides and ammonia or primary amines. The result is a condensation reaction: (RCO)2O + R′NH2 → (RCO)2NR′ + H2O These reactions proceed via the intermediacy of Zobacz więcej • IUPAC: imides Zobacz więcej Witryna23 paź 2014 · Because biaxial tensile stress caused by solvent evaporation makes PAA chains align to the in-plane direction, more residual solvent means less fraction of polymer chains orient to the in-plane direction. As a result, the protocol with a higher drying temperature made the PAA imidized to the stiffer PI at a more randomly … biopharma show boston
Thermal imidization process of polyimide film: Interplay …
Witryna27 lip 2024 · Imidized Plastics: Polyamide-imide, polybenzimidazole, and polyimide are all imidized plastics. Imidized plastics have a good load bearing and chemical resistance. They can be used for applications that will be used in high temperature environments. Polyethylene (PE): Polyethylene is perfect for applications that require … WitrynaDefinitions of imidized, synonyms, antonyms, derivatives of imidized, analogical dictionary of imidized (English) ... Get XML access to fix the meaning of your … Witryna11 cze 2024 · This means that films imidized above 200 °C are free of solvent, and same is considered true for PAA solution layer and powder paste dried at 250 °C. With matching coupons placed in the mold a two step curing cycle was used as shown in Fig. 8 . For PI A the temperature was raised to 300 °C, which is slightly higher than the … biopharma shipping solutions