Conducting Block Copolymers of Regioregular Poly(3-hexylthiophene) and Poly(methacrylates): Electronic Materials with Variable Conductivities and Degrees of Interfibrillar Order

• Published in: Macromolecular rapid communications. Vol. 28; no. 17; pp. 1816 - 1824
• Main Authors: Iovu, Mihaela C., Zhang, Rui, Cooper, Jessica R., Smilgies, Detlef M., Javier, Anna E., Sheina, Elena E., Kowalewski, Tomasz, McCullough, Richard D.
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 03.09.2007; WILEY‐VCH Verlag
• Subjects: atomic force microscopy (AFM); block copolymers; conjugated polymers; Grignard metathesis polymerization (GRIM); regioregular polythiophenes
• ISSN: 1022-1336; 1521-3927
• DOI: 10.1002/marc.200700401

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.