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A novel catalyst for the glycolysis of poly(ethylene terephthalate)
Author(s) -
Troev K.,
Grancharov G.,
Tsevi R.,
Gitsov I.
Publication year - 2003
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.12711
Subject(s) - depolymerization , ethylene glycol , diethylene glycol , catalysis , ethylene , oligomer , polymer chemistry , materials science , dimethyl terephthalate , titanium , phosphate , chemistry , nuclear chemistry , organic chemistry
Poly(ethylene terephthalate) waste materials were depolymerized by ethylene glycol (EG), diethylene glycol (DEG), and propylene glycol (PG) in the presence of a novel catalytic system: titanium (IV)‐phosphate. The new catalyst was synthesized through a reaction of TiCl 4 with triethyl phosphate (C 2 H 5 O) 3 P(O). It was found that the depolymerization of poly(ethylene terephthalate) fiber proceeds faster in the presence of titanium (IV)‐phosphate compared with compounds traditionally used in this process like Zn(OOCCH 3 ) 2 . The oligomer distribution in the glycolysis products was studied by size‐exclusion chromatography. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 1148–1152, 2003