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A Modular Approach toward Block Copolymers
Author(s) -
Higley Mary Nell,
Pollino Joel M.,
Hollembeak Eric,
Weck Marcus
Publication year - 2006
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200401221
Subject(s) - romp , copolymer , polymer chemistry , polymerization , materials science , polymer , metathesis , chain transfer , cyclooctene , chemistry , organic chemistry , radical polymerization , catalysis , composite material
Abstract A novel methodology for the formation of block copolymers has been developed that combines ring‐opening metathesis polymerization (ROMP) with functional chain‐transfer agents (CTAs) and self‐assembly. Telechelic homopolymers of cyclooctene derivatives end‐functionalized with hydrogen‐bonding or metal‐coordination sites are formed through the combination of ROMP with a corresponding functional CTA. These telechelic homopolymers are fashioned with a high control over molecular weight and without the need for post‐polymerization procedures. The homopolymers undergo fast and efficient self‐assembly with their complement homopolymer or small molecule analogue to form block‐copolymer architectures. The block copolymers show equivalent association constants as their small molecule analogues described in the literature, regardless of size or nature of the complementary unit or the polymer side chain.