单词 | polyimide |
释义 | polyimiden. Chemistry. Any polymer in which the repeating units contain imide groups, usually in the form —CO·N·CO—; esp. any of a class of thermosetting resins widely used for heat-resistant films and coatings. ΘΚΠ the world > matter > chemistry > polymer chemistry > resins and plastics > [noun] > thermosetting resins polyester1922 polysulphone1934 polyimide1945 epoxy resin1950 society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > synthetic resin > specific synthetic resins coumarone resin1900 novolak1909 glyptal1915 marblette1927 Vinylite1929 polyolefin1930 polysulphone1934 urea resin1937 melamine resin1939 polyurethane1939 polyvinylidene chloride1940 polyvinyl butyral1941 polyimide1945 Teflon1945 Araldite1946 polytetrafluoroethylene1946 epoxy resin1950 urethane1956 Maraglas1962 tartan1964 alkyd1984 1945 Brit. Patent 570,858 2/1 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. 1955 U.S. Patent 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. 1965 New 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. 1975 Wen-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. 2001 R. W. Cahn Coming of Materials Sci. vii. 264 In multilayer metallisation structures, polymer films, temperature-resistant polyimides in particular, are increasingly replacing ceramics. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1945 |
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