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Conducting Block Copolymers of Regioregular Poly(3‐hexylthiophene) and Poly(methacrylates): Electronic Materials with Variable Conductivities and Degrees of Interfibrillar Order
Author(s) -
Iovu Mihaela C.,
Zhang Rui,
Cooper Jessica R.,
Smilgies Detlef M.,
Javier Anna E.,
Sheina Elena E.,
Kowalewski Tomasz,
McCullough Richard D.
Publication year - 2007
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.200700401
Subject(s) - copolymer , methacrylate , materials science , polymer chemistry , methyl methacrylate , morphology (biology) , block (permutation group theory) , polymer , chemical engineering , composite material , biology , engineering , genetics , geometry , mathematics
Abstract Integration of regioregular poly(3‐hexylthiophene) in diblock copolymers with various poly(methacrylates) yielded electronic materials with variable conductivities and different types of nanoscale order. Solid state analysis of poly(3‐hexylthiophene)‐ block ‐poly(methyl methacrylate) and poly(3‐hexylthiophene)‐ block ‐poly( t ‐butyl methacrylate) diblock copolymers revealed the presence of densely packed, locally parallel nanofibrils. By contrast, poly(3‐hexylthiophene)‐ block ‐poly(isobornyl methacrylate) copolymers containing bulkier isobornyl functional groups exhibited nanofibrillar morphology with isolated fibrils and no interfibrillar order.