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Living diradical polymerization
Author(s) -
Hammouch Saïd Oulad,
Catala JeanMarie
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.1996.030170212
Subject(s) - diradical , polymerization , monomer , polymer chemistry , radical polymerization , bulk polymerization , styrene , kinetic chain length , chain transfer , living polymerization , chemistry , nitroxide mediated radical polymerization , photochemistry , materials science , polymer , organic chemistry , copolymer , physics , nuclear physics , singlet state , excited state
A diradical initiator containing two thermoreversible bonds was prepared and used for the polymerization of styrene at 90°C. The monomer consumption and the variation of the molecular weight were monitored with time. The results show that the process can be considered as living and that the polymerization rate is independent of the radical initiator concentration. By elemental analysis of the chain ends it was concluded that the propagation reaction occurs at both ends.