期刊
LANGMUIR
卷 30, 期 15, 页码 4427-4433出版社
AMER CHEMICAL SOC
DOI: 10.1021/la5000588
关键词
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资金
- National Science Foundation [DMR-0906695]
- Panasonic Boston Laboratory
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0906695] Funding Source: National Science Foundation
Thiol-ene chemistry is used for the surface grafting of vinyl-functionalized poly(fluorene) derivatives onto substrates containing free surface thiol groups. The grafting reaction proceeds in a matter of minutes under UV irradiation without photoinitiator, and the resulting surface-bound, solvent-impervious conjugated polymers retain their characteristic optoelectronic properties. End-chain grafted poly(fluorene)s reach greater surface densities than their side-chain grafted counterparts and show less blue-shifting of photoluminescence upon grafting, suggesting that chain end-grafted conjugated polymers experience less disruption of their extended conjugation and adopt a more brush-like surface conformation. Surface grafted poly(fluorene)s showed facile photopatterning, and thin film transistors with semiconducting polymers directly grafted to the dielectric layer showed performances directly comparable to conventional self-assembled layers of performance-improving alkylsilanes.
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