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Triblock Terpolymers by Simultaneous Tandem Block Polymerization (STBP)
Author(s) -
Freudensprung Ines,
Klapper Markus,
Müllen Klaus
Publication year - 2016
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.201500568
Subject(s) - polymer chemistry , polymerization , norbornene , materials science , copolymer , ethylene glycol , monomer , ring opening polymerization , polymer , metathesis , chemical engineering , chemistry , organic chemistry , composite material , engineering
A route of synthesizing triblock terpolymers in a one‐pot, “one‐step” polymerization approach is presented. The combination of two distinct polymerization techniques through orthogonal catalyst/initiator functionalities attached to a polymeric linker furnishes novel pathways to ABC‐terpolymers. Both polymerizations have to be compatible regarding mechanisms, chosen monomers, and solvents. Here, an α,ω‐heterobifunctional poly(ethylene glycol) serves as polymeric catalyst/initiator to obtain triblock terpolymers of poly(norbornene)‐ b ‐poly(ethylene glycol)‐ b ‐poly( l ‐lactic acid) PNB‐PEG‐PLLA via simultaneous ring opening metathesis polymerization and ring opening polymerization in a fast one‐pot polymerization. Structural characterization of the polymers is provided via 1 H‐, DOSY‐, and 1 H, 1 H‐COSY‐NMR, while solution and thin film self‐assembly are investigated by dynamic light scattering and atomic force microscopy.