A class of polymers whose repeating units are characterized by ester groups and imide groups. It is usually obtained by imidization of polyester amic acid, and has the characteristics of high temperature resistance and good processability. Polyesterimide PEI is extensively…
Polyurethane often abbreviated PUR and PU) refers to a class of polymers composed of organic units joined by carbamate (urethane) links. In contrast to other common polymers such as polyethylene and polystyrene, polyurethane is produced from a wide range of…
Acetal, a general term for a class of organic compounds, is the product of the condensation of one molecule of aldehyde and two molecules of alcohol, such as acetaldehyde diethyl acetal, with a boiling point of 104 °C; benzaldehyde dimethyl…