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The conditions and products of oxidative polycondensation of 2-(p-tolyliminomethyl)phenol in alkaline aqueous solution in the presence of sodium hypochlorite or atmospheric oxygen were studied. The optimal conditions were found, and procedures for preparing oligo(p-tolyliminomethyl)phenols were developed. The composition and structure of the products were determined by chemical and spectroscopic methods.  相似文献   
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The molecular-weight distribution and functionality of polycondensation products of 1,4,5,6,7,7-hexa chloro(hexabromo)bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride, propylene glycol, and maleic anhydride were studied by size-exclusion chromatography. Conditions were examined for preparing oligoesters with more uniform composition and regular alternation of ester fragments and unsaturated units  相似文献   
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Chemistry of Natural Compounds - Chemical and microbiological methods for synthesizing polyacetylenes were studied. The reaction of 1,4-dibromobutyne with monosubstituted acetylene alcohols...  相似文献   
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