Open AccessRecycling of End‐of‐Life Poly(bisphenol A carbonate) via Alkali Metal Halide‐Catalyzed Phenolysis
Author(s) -
Alberti Christoph,
Scheliga Felix,
Enthaler Stephan
Publication year - 2019
Publication title -
chemistryopen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 29
ISSN - 2191-1363
DOI - 10.1002/open.201900149
Subject(s) - depolymerization , bisphenol a , diphenyl carbonate , carbonate , bisphenol , chemistry , phenol , catalysis , halide , alkali metal , organic chemistry , polycarbonate , polymerization , polymer chemistry , transesterification , polymer , epoxy
The chemical recycling of end‐of‐life plastic waste streams can contribute to a resource‐conserving and sustainable society. This matter of recycling is composed of a sequence of depolymerization and subsequent polymerization reactions. In this regard, we have studied the chemical recycling of end‐of‐life poly(bisphenol A carbonate) applying phenol as depolymerization reagent. In the presence of catalytic amounts of alkali metal halides as products bisphenol A and diphenyl carbonate were obtained in excellent turnover frequencies of up to 1392 h −1 and short reaction times. These depolymerization products offer the straightforward possibility to close the cycle by producing new poly(bisphenol A carbonate) and as second product phenol, which can be reused for further depolymerizations.