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Steric effects in the basic hydrolysis of poly(ethylene terephthalate)
Author(s) -
Namboori C. G. G.,
Haith Malcolm S.
Publication year - 1968
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1968.070120901
Subject(s) - methoxide , reactivity (psychology) , steric effects , alkoxide , ethylene , hydroxide , nucleophile , chemistry , hydrolysis , polymer chemistry , ethylene dibromide , organic chemistry , catalysis , medicine , alternative medicine , pathology , toxicology , biology
Abstract A comparative study of the reactivity of hydroxide and various alkoxide anions was made by determining percentage weight loss of poly(ethylene terephthalate) fiber. Regardless of the basicity of the anions, the order of reactivity was found to be hydroxide < tert ‐butoxide < sec ‐propoxide < methoxide < ethoxide. This observed order follows the nucleophilicity of the bases, and the relatively lower reactivity of sec ‐propoxide and tert ‐butoxide is assumed to be due to steric retardation during the equilibrium reactions.