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Potassium hydride — the new initiator for anionic polymerization of oxiranes
Author(s) -
Stolarzewicz Andrzej,
Neugebauer Dorota,
Grobelny Janusz
Publication year - 1996
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.1996.030171106
Subject(s) - molar mass , polymer chemistry , polymerization , monomer , chemistry , anionic addition polymerization , hydrolysis , chain transfer , hydride , macromolecule , polymer , potassium , ring opening polymerization , molar ratio , living anionic polymerization , radical polymerization , organic chemistry , metal , catalysis , biochemistry
Potassium hydride with 1,4,7,10,13,16‐hexaoxacyclooctadecane (18‐crown‐6) was used in the anionic polymerization of (butoxymethyl)oxirane. Polymers with low ratio of mass‐ to number‐average molar masses (M̄ w /M̄ n < 1.1) were obtained, each macromolecule being terminated (after hydrolysis) with a hydroxyl group on both of its ends. Chain transfer reactions to the monomer were not observed to operate in this system.