| 单词 | polycarboxylic | 
| 释义 | > as lemmaspolycarboxylic   polycarboxylic adj.  Brit.  , U.S.    polycarboxylic acid, a carboxylic acid having more than one carboxyl group in the molecule.ΘΚΠ the world > matter > chemistry > organic chemistry > organic radicals > 			[adjective]		 > miscellaneous named tetrylic1857 amylic1858 xylylic1868 azoxy1873 sulphonic1873 ethoxy1880 polycarboxylic1898 ethoxyl1903 carbamyl1907 ethoxylated1912 1898    Proc. Chem. Soc. 14 179  				The preparation of a number of salts of polycarboxylic acids..is described. 1947    Jrnl. Polymer Sci. 2 12  				Both negative and positive polyions may be made; the former as polycarboxylic or sulfonic acids and their salts and the latter..as onium salts of polymers such as vinylpyridine. 1994    Science 11 Nov. 1124/2 		(advt.)	  				Kinetic characterization for the reaction between polycarboxylic acids and polyisocyanates. < as lemmas  | 
	
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