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Palladium‐Catalyzed Polycondensation for the Synthesis of Poly(Aryl)Sulfides
Author(s) -
Hou Peng,
Oechsle Peter,
Kuckling Dirk,
Paradies Jan
Publication year - 2020
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.202000067
Subject(s) - condensation polymer , sulfide , aryl , thiophene , polymerization , polymer chemistry , yield (engineering) , catalysis , palladium , chemistry , coupling reaction , materials science , organic chemistry , polymer , alkyl , metallurgy
The palladium‐catalyzed CS cross coupling reaction is investigated as a novel efficient tool for the synthesis of poly(phenyl)sulfide derivatives. The reaction proceeds through the polycondensation of dibromo arenes with a H 2 S‐surrogate to yield poly(aryl)sulfides. The reaction is generalized by the synthesis of so‐far‐unprecedented poly(2,5‐thiophene)sulfide. Number average molecular weights ( M sss ) of up to 3780 and 1770 g mol −1 for poly(phenyl)sulfide and poly(thiophene)sulfide are achieved with degrees of polymerization (DP n ) of 10 and 7, respectively. A mechanism for the new polycondensation reaction is suggested.