caa a22 4500 465786707 CHVBK 20180323112011.0 cr unu---uuuuu 170327e19900701xx s 000 0 eng 10.1007/BF00298323 doi (NATIONALLICENCE)springer-10.1007/BF00298323 A radical-anion mechanism for the phase transfer catalyzed depolymerization of poly(2,6-dimethyl-1,4-phenylene oxide) [Elektronische Daten] [V. Percec, J. Wang] Summary: This paper describes a novel mechanism for the depolymerization of poly(2,6-dimethyl-1,4-phenylene oxide). This radical-anion mechanism is responsible for liquid (organic solvent)-liquid (aqueous inorganic base) phase transfer catalyzed depolymerization of poly(2,6-dimethyl-1,4-phenylene oxide). This depolymerization occurs through the addition of an aryloxy radical to the terminal phenolate anion of the polymer. The particular example discussed in this paper refers to the depolymerization of poly(2,6-dimethyl-1,4-phenylene oxide) in the presence of either 2,4,6-trimethylphenol or 4-tert-butyl-2,6-dimethylphenol. The similarities and differences between the phase transfer catalyzed polymerization of 4-bromo-2,6-dimethylphenol in the presence of 2,4,6-trimethylphenol and 4-tert-butyl-2,6-dimethylphenol and the phase transfer catalyzed depolymerization of poly(2,6-dimethyl-1,4-phenylene oxide) in the presence of the same two phenols are discussed. Springer-Verlag, 1990 Percec V. Department of Macromolecular Science, Case Western Reserve University, 44106, Cleveland, OH, USA aut Wang J. Department of Macromolecular Science, Case Western Reserve University, 44106, Cleveland, OH, USA aut Polymer Bulletin Springer-Verlag 24/1(1990-07-01), 63-69 0170-0839 24:1<63 1990 24 289 https://doi.org/10.1007/BF00298323 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00298323 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Percec V. Department of Macromolecular Science, Case Western Reserve University, 44106, Cleveland, OH, USA aut NATIONALLICENCE 700 1- Wang J. Department of Macromolecular Science, Case Western Reserve University, 44106, Cleveland, OH, USA aut NATIONALLICENCE 773 0- Polymer Bulletin Springer-Verlag 24/1(1990-07-01), 63-69 0170-0839 24:1<63 1990 24 289 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer