单词 | polycondensation |
释义 | polycondensationn. Chemistry. A condensation reaction which occurs between molecules each having at least two functional groups and which yields a polymer; a process based on such a reaction. ΘΚΠ the world > matter > chemistry > polymer chemistry > polymerization > [noun] > condensation polycondensation1936 the world > matter > chemistry > organic chemistry > chemical processes or reactions > [noun] > condensation > types of self-condensation1879 polycondensation1936 Prins reaction1944 1936 Trans. Faraday Soc. 32 52 The formation of high polymeric products can also take place by a polycondensation process in which numerous reactive molecules condense. 1963 A. J. Hall Student's Handbk. Textile Sci. ii. 79 It [sc. nylon] is made by the melt-spinning of polyhexamethylene adipamide which in its turn is produced by the polycondensation of equimolecular proportions of adipic acid..and hexamethylene diamine. 1995 Nature 30 Mar. 409/3 A silica gel is generally formed by polycondensation of a silica-containing precursor, such as tetramethoxysilane or waterglass. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < |
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