DOI: 10.1002/adfm.200305191. Microscopic Morphology of Polyfluorene–Poly(ethylene oxide) Block Copolymers: Influence of the Block Ratio

Microscopic Morphology of Polyfluorene–Poly(ethylene oxide) Block Copolymers: Influence of the Block Ratio

10.1002/adfm.200305191

Crossref journal-article

Wiley

Advanced Functional Materials (311)

Abstract

AbstractIn this paper, we describe the synthesis and characterization of poly(9,9′‐dioctylfluorene)–poly(ethylene oxide) (PF‐PEO) block copolymers with different block ratio and molecular architectures (diblock or triblock copolymers). Tapping‐mode atomic force microscopy is used to investigate the relationship between the molecular structure and the microscopic morphology of thin deposits. Copolymers with a low average volume ratio of PEO (fEO from 0.1 to 0.3) exhibit a well‐defined organization into nanoribbons. A model of chain packing is proposed; these structures arise from the interplay of π–π interactions between conjugated PF segments and the interactions of PEO with the mica substrate surface. For copolymers with higher average volume ratio of PEO (fEO > 0.4), the organized structures disappear and lead to untextured aggregates, probably because long‐range, regular π–π stacking of the segments can no longer take place. We also observe that the nature of the solvent from which deposits are grown and the substrate polarity have a strong impact on the microscopic morphology.

Bibliography

Surin, M., Marsitzky, D., Grimsdale, A. C., MÃ¼llen, K., Lazzaroni, R., & LeclÃ¨re, P. (2004). Microscopic Morphology of PolyfluoreneâPoly(ethylene oxide) Block Copolymers: Influence of the Block Ratio. Advanced Functional Materials, 14(7), 708â715. Portico.

Authors 6

M. Surin (first)
D. Marsitzky (additional)
A. C. Grimsdale (additional)
K. Müllen (additional)
R. Lazzaroni (additional)
P. Leclère (additional)

References 43 Referenced 76

Dates

Type	When
Created	21 years, 1 month ago (July 22, 2004, 7:02 a.m.)
Deposited	1 year, 9 months ago (Nov. 17, 2023, 9:59 a.m.)
Indexed	4 months, 2 weeks ago (April 22, 2025, 3:50 a.m.)
Issued	21 years, 2 months ago (July 1, 2004)
Published	21 years, 2 months ago (July 1, 2004)
Published Online	21 years, 1 month ago (July 22, 2004)
Published Print	21 years, 2 months ago (July 1, 2004)

Funders 0

None

BibTeX

@article{Surin_2004, title={Microscopic Morphology of Polyfluorene–Poly(ethylene oxide) Block Copolymers: Influence of the Block Ratio}, volume={14}, ISSN={1616-3028}, url={http://dx.doi.org/10.1002/adfm.200305191}, DOI={10.1002/adfm.200305191}, number={7}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Surin, M. and Marsitzky, D. and Grimsdale, A. C. and Müllen, K. and Lazzaroni, R. and Leclère, P.}, year={2004}, month=jul, pages={708–715} }

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