Polyetherimide
Polyetherimide
CAS: 61128-46-9
Molecular Formula: (C39H30N2O6)n
Polyetherimide - Names and Identifiers
Polyetherimide - Physico-chemical Properties
| Molecular Formula | (C39H30N2O6)n |
| Molar Mass | 628.62682 |
| Density | 1.27 g/mL at 25 °C (lit.) |
| Storage Condition | Room Temprature |
| Use | Application Polyetherimide ("PEIs") is an amorphous, transparent high-performance polymer with a glass transition temperature ("Tg") greater than 180°C. PEIs also have high strength, heat resistance and modulus, as well as a wide range of chemical resistance, and are therefore widely used in applications such as automotive, telecommunications, aerospace, electronic/electrical, transportation and health care. |
Polyetherimide - Risk and Safety
| WGK Germany | 3 |
Polyetherimide - Nature
| EPA chemical information | 1,3-Isobenzofurandione, 5,5'-[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis-, polymer with 1,3-benzenediamine (61128-46-9) |
Last Update：2024-04-10 22:29:15
Polyetherimide - Preparation
One method of preparing polyetherimide is through the alkali metal salt of dihydroxy aromatic compound (such as bisphenol A disodium salt (BPA · Na2)) and bis (halo phthalimide) Polymerization reaction. The molecular weight of the resulting polyetherimide can be controlled in two ways. The first is to use bis (halo phthalimide) in molar excess relative to the alkali metal salt of the dihydroxy aromatic compound. The second is to prepare bis (halogenated phthalic anhydride) in the presence of a monofunctional compound (such as phthalic anhydride) to form a capping agent. Phthalic anhydride reacts with a portion of organic diamine to form monohalo-bis (phthalimide). This monohalide-bis (phthalimide) acts as a capping agent in the polymerization reaction step by reacting with phenate end groups in the growing polymer chain.
Last Update：2024-04-10 22:29:15
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