| 释义 |
polyimide|pɒlɪˈɪmaɪd|
[f. poly- + imide.]
Any polymer in which the units contain imide groups, usu. in the form {b1}CO{b1}N{b1}CO{b1}{btc1}; esp. any of a class of thermosetting resins widely used for heat-resistant films and coatings.
1945Brit. Pat. 570,858, The products are referred to as polyamide-imides. When a tetracarboxylic acid of the above mentioned kind is used each pair of carboxyl groups reacts with an amino group of the diprimary diamine through imide-formation so that the polymer is a polyimide rather than a polyamide-imide. 1955U.S. Pat. 2,710,853 1 This invention relates to a novel group of linear polymeric polyimides,..said polyimides differing from previously known polyimides in properties which are important in injection molding applications. 1965New Scientist 19 Aug. 443/1 Du Pont's polyimide known as H-film, or Kapton, a plastic film that finds its chief use as a high-temperature electrical insulation. 1975Wen-Hsuan Chang et al. in M. Lewin et al. Flame-Retardant Polymeric Materials x. 442 Decorative coatings for cookware are possible with polyimide coatings because of their ability to withstand direct contact with flame. |