= Polycondensation
<Polycondensation> is <step-growth polymerization> in which joining reactions eliminate small <molecules>. Its chain-bearing <molecule> count excludes those byproducts; otherwise two chains joining while releasing one small product would misleadingly appear to conserve the counted population.<IUPAC Compendium of Chemical Terminology, fifth edition (Gold Book) by International Union of Pure and Applied Chemistry>[polycondensation, P04722, definition and growth-step equation]{ref}
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