Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 142, Issue 35, Pages 15038-15048Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.0c06185
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Funding
- NSERC
- University of Victoria
- Japan Society for the Promotion of Science (JSPS)
- Consejo Nacional de Ciencia y Tecnologia (CONACYT) of Mexico
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The creation of 1D Jr-conjugated nanofibers with precise control and optimized optoelectronic properties is of widespread interest for applications as nanowires. Living crystallization-driven self-assembly (CDSA) is a seeded growth method of growing importance for the preparation of uniform 1D fiber-like micelles from a range of crystallizable polymeric amphiphiles. However, in the case of polythiophenes, one of the most important classes of conjugated polymer, only limited success has been achieved to date using block copolymers as precursors. Herein, we describe studies of the living CDSA of phosphonium-terminated amphiphilic poly(3-hexylthiophene)s to prepare colloidally stable nanofibers. In depth studies of the relationship between the degree of polymerization and the self-assembly behavior permitted the unveiling of the energy landscape of the living CDSA process. On the basis of the kinetic and thermodynamic insight provided, we have been able to achieve an unprecedented level of control over the length of low dispersity fiber-like micelles from 40 nm to 2.8 mu m.
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