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Effect of alkali on filaments of poly(ethylene terephthalate) and its copolyesters
Author(s) -
Datye Keshav V.,
Palan Bharat H.
Publication year - 1989
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.1989.070380804
Subject(s) - materials science , ethylene , copolymer , ethylene glycol , polymer chemistry , alkali metal , tenacity (mineralogy) , aqueous solution , fiber , poly ethylene , polymer , viscosity , elongation , chemical engineering , composite material , organic chemistry , chemistry , ultimate tensile strength , catalysis , engineering
The alkali hydrolysis of poly(ethylene terephthalate), anionic copolymer of poly(ethylene terephthalate), and block copolymer of poly(ethylene terephthalate)–poly(ethylene glycol) is investigated under a variety of conditions of alkali concentration in aqueous bath, additives, time, and temperature. Measurements of loss in weight, linear density, breaking load, tenacity, elongation to break apart from intrinsic viscosity, fiber density, COOH‐end group content, diameter of filaments, and scanning electron micrographs have been analyzed to identify the differences in the action of alkali on these polymer materials.