Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 133, Issue 27, Pages 10390-10393Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja2038547
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Funding
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-SC0001087]
- NSF-MRSEC on Polymers at UMass [DMR-0820506]
- DOE Office of Science [DE-AC05-06OR23100]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [820506] Funding Source: National Science Foundation
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We report on the solution-state assembly of all-conjugated polythiophene diblock copolymers containing nonpolar (hexyl) and polar (triethylene glycol) side chains. The polar substituents provide a large contrast in solubility, enabling formation of stably suspended crystalline fibrils even under very poor solvent conditions for the poly(3-hexylthiophene) block. For appropriate block ratios, complexation of the triethylene glycol side chains with added potassium ions drives the formation of helical nanowires that further bundle into superhelical structures.
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