单词 | polycarbonate |
释义 | polycarbonaten. Chemistry. ΘΚΠ the world > matter > chemistry > organic chemistry > organic salts > [noun] > carbonates anatron1706 carbonate1788 marine alkali1791 black ash1803 semi-carbonate1808 oxycarbonate1819 potash1823 hydrocarbonate1843 magnesium carbonate1871 thiocarbonate1883 polycarbonate1886 1886 T. S. Hunt Mineral Physiol. & Physiogr. viii. 289 It was further declared that the carbon-spars must be represented as polycarbonates, having not less than from ‘twelve to eighteen equivalents of base replaceable so as to give rise to a great number of species’. 1891 Chem. News 23 Oct. 212/2 (heading) Contamination of alkaline polycarbonates by heavy metals. 2. Any of a class of polymers in which the units are linked by the carbonate group —O·CO·O—, many of which are thermoplastic resins widely used esp. as moulding materials and films. Frequently attributive. ΘΚΠ society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > other polymers polyethylene alcohol1862 polyethylene glycol1886 polyglycol1889 polyanhydride1900 latex1912 polyether1922 polyvinyl alcohol1927 polyamide1929 polycarbonate1930 polyethylene oxide1930 polyacrylonitrile1935 bouncing putty1944 polyvinyl pyrrolidone1945 povidone1955 fibrid1960 the world > matter > chemistry > polymer chemistry > resins and plastics > [noun] > thermoplastic resins > other miscellaneous polyphenylene oxide1921 polyamide1929 polycarbonate1930 polyacetal1931 polypropylene1935 polymethyl methacrylate1936 polyethylene terephthalate1946 Dacron1951 polyacrylic1959 polyallomer1962 ionomer1964 parylene1965 1930 Jrnl. Amer. Chem. Soc. 52 315 It seems quite certain, therefore, that these polycarbonates are also open chains. 1959 Mod. Plastics 36 39 Farben fabriken-Bayer..has been manufacturing polycarbonates on a commercial scale in Germany for nearly a year. 1978 Skatcat's Quiz Bk. (Royal Soc. Prevention of Accidents) 2/1 Also O.K. are polycarbonate laminates of glass or carbon-fibre reinforced resins with plywood cores. 2002 Amer. Woodworker June 12 Buy a pair of prescription safety glasses with polycarbonate lenses and permanent side shields. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1886 |
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