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A Facile Strategy for Preparation of α ‐Heterobifunctional Polystyrenes with Well‐Defined Molecular Weight
Author(s) -
Wang Yun,
Lu Lu,
Wang Hu,
Lu Dairen,
Tao Kang,
Bai Ruke
Publication year - 2009
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.200900454
Subject(s) - atom transfer radical polymerization , dispersity , polymer chemistry , styrene , copolymer , end group , polymerization , materials science , ring opening polymerization , chemistry , organic chemistry , polymer
Abstract A facile strategy for synthesis of α ‐heterobifunctional polystyrenes is reported. The novel functional polystyrenes have been successfully synthesized via a combination of atom transfer radical polymerization (ATRP) and chemical modification of end‐functional groups. First, ε ‐caprolactone end‐capped polystyrenes with controlled molecular weight and low polydispersity were prepared by ATRP of styrene using α ‐bromo‐ ε ‐caprolactone ( α BrCL) as an initiator. Then, removal of the terminal bromine atom was performed with iso ‐propylbenzene in the presence of CuBr/PMDETA. Finally, ring‐opening modifications of the caprolactone group were carried out with amines, n ‐butanol and H 2 O to produce novel polystyrenes containing two different functional groups at one end.