| 释义 |
epoxide Chem.|ɪˈpɒksaɪd|
[f. epi- + oxide.]
A chemical compound the molecules of which contain an oxygen atom attached to two carbon atoms directly or indirectly bonded to one another; a cyclic ether. Also attrib., as epoxide resin = epoxy resin.
1930[see epoxy prefix and quasi-adj.]. 1938Allen & Blatt in H. Gilman Org. Chem. I. vi. 545 Peracetic acid and perbenzoic acid form epoxides by addition of an atom of oxygen to ethylenic linkages. 1950Chem. Abstr. XLIV. 3298 Epoxide resins... Products for enamels, paints, adhesives, films, molded articles, etc. 1958Engineering 31 Jan. 7/3 (Advt.), The epoxy or epoxide resins are among the newest and most versatile modern plastics.
Hence epoxiˈdation, the formation of an epoxide by the addition of an atom of oxygen to two doubly bonded carbon atoms; eˌpoxiˈdizable a., capable of undergoing epoxidation; eˈpoxidize v., to convert into an epoxide by means of epoxidation; so eˈpoxidized, eˈpoxidizing ppl. adjs.
1944Jrnl. Amer. Chem. Soc. LXVI. 1927/2 The epoxidation of oleic acid. 1945Ibid. LXVII. 414/2 Epoxidized oils, a new class of chemical reaction products from triglycerides, have been prepared. 1946Ibid. LXVIII. 1507/2 The same olefins were epoxidized with peracetic acid in acetic acid solution. 1958Industrial & Engin. Chem. June 873/1 Use of this versatile peracetic acid as the epoxidizing agent results in greater freedom from undesirable side reactions. 1960J. G. Wallace in Kirk & Othmer Encycl. Chem. Technol. Suppl. II. 327 Epoxides may be produced by decomposing the hemiperoxyacetate in the presence of an epoxidizable olefin. Ibid. 329 Epoxides..may also be obtained by reactions not involving epoxidation. 1963W. R. Moore Introd. Polymer Chem. vi. 178 New epoxy resins have recently been produced in which the epoxide groups are obtained by epoxidation of a carbon-carbon double bond. |