Macrostructural order and optical properties of polyfluorene-based polymer films

Hayashi, Shotaro; Inagi, Shinsuke

doi:10.1038/pj.2010.58

Cited by 17 publications

(6 citation statements)

References 19 publications

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“…As for the homopolymer PFO-2, the peak was relatively weaker, implying a nearly non-crystalline (amorphous) profile. The same phenomena happened at 2θ ≈ 7.5°, which might correspond to lamellar-patterned d-spacings [ 36 ].…”

Section: Resultsmentioning

confidence: 70%

Synthesis and Electron Transporting Properties of Diblock Copolymers Consisting of Polyfluorene and Polystyrene

Cheng,

Jiang,

Shan

et al. 2024

Materials

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Poly(9,9-di-n-octylfluorene) (PFO) is a promising material for polymer light-emitting diodes (PLEDs) due to its advantageous properties. To enhance its electron transporting capabilities, diblock polymers were synthesized by attaching polystyrene (PSt) chains of varying lengths to one end of the PFO molecule. In a comparative study with PFO homopolymer, the diblock polymers maintained similar thermal properties, absorption spectra, and photoluminescent stability, while exhibiting slightly deeper lowest unoccupied molecular orbital (LUMO) levels and higher crystallinity. Notably, diblock polymers with shorter polystyrene blocks demonstrated higher electron mobility than the PFO homopolymer and diblock polymers with excessively long polystyrene blocks. These findings suggest that the optimal chain length of the polystyrene block is crucial for maximizing electron mobility, thus offering valuable insights for designing high-performance PLED materials.

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Section: Resultsmentioning

confidence: 70%

Synthesis and Electron Transporting Properties of Diblock Copolymers Consisting of Polyfluorene and Polystyrene

Cheng,

Jiang,

Shan

et al. 2024

Materials

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“…In addition to linear polymers, by using 3,5-dibromophenylboronic acid, the same approach was used to prepare a microporous hyperbranched polymer (MHP1) with a high temperature resistance and high yields in short reaction times. Among the FPPs, polyfluorenes (PFs) [86] and their copolymers [87][88][89] exhibited advanced optoelectronic properties due to the influence of micro-and macrostructural organization in a solid-state and/or polymer film [90][91][92][93][94][95][96][97]. Therefore, the method of preparation of PFs can strongly influence their properties and performance.…”

Section: Mechanosynthesis Of Polyphenylenesmentioning

confidence: 99%

“…Among the FPPs, polyfluorenes (PFs) [86] and their copolymers [87][88][89] exhibited advanced optoelectronic properties due to the influence of micro-and macrostructural organization in a solid-state and/or polymer film [90][91][92][93][94][95][96][97]. Therefore, the method of preparation of PFs can strongly influence their properties and performance.…”

Section: Mechanosynthesis Of Polyphenylenesmentioning

confidence: 99%

TM-Free and TM-Catalyzed Mechanosynthesis of Functional Polymers

et al. 2023

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Mechanochemically induced methods are commonly used for the depolymerization of polymers, including plastic and agricultural wastes. So far, these methods have rarely been used for polymer synthesis. Compared to conventional polymerization in solutions, mechanochemical polymerization offers numerous advantages such as less or no solvent consumption, the accessibility of novel structures, the inclusion of co-polymers and post-modified polymers, and, most importantly, the avoidance of problems posed by low monomer/oligomer solubility and fast precipitation during polymerization. Consequently, the development of new functional polymers and materials, including those based on mechanochemically synthesized polymers, has drawn much interest, particularly from the perspective of green chemistry. In this review, we tried to highlight the most representative examples of transition-metal (TM)-free and TM-catalyzed mechanosynthesis of some functional polymers, such as semiconductive polymers, porous polymeric materials, sensory materials, materials for photovoltaics, etc.

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“…Previously, we determined that this yellow emission of P3 in the solid state originated from the interdigitated packing of the conjugated main chain and alkyl substituents at the 9position of the fluorene moiety. [7] Interestingly, the color of the emissions of the P2 and P3 films were drastically different to that of P1 (Figure 1 b).…”

mentioning

confidence: 94%

Parallel Polymer Reactions of a Polyfluorene Derivative by Electrochemical Oxidation and Reduction

2013

Self Cite

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Doppelt gut: Die parallele elektrochemische Oxidation und Reduktion eines einzigen Polymers (P1) ergab simultan zwei korrespondierende Polymere (P2 und P3), die einfach zu trennen waren. Bei Bestrahlung mit UV‐Licht unterschieden sich die Emissionen der P2‐ und P3‐Filme drastisch von der von P1 (links). Parallele Reaktionen an einer bipolaren Elektrode führten zu einem mehrfarbigen Gradientenfilm (rechts).

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Macrostructural order and optical properties of polyfluorene-based polymer films

Cited by 17 publications

References 19 publications

Synthesis and Electron Transporting Properties of Diblock Copolymers Consisting of Polyfluorene and Polystyrene

Synthesis and Electron Transporting Properties of Diblock Copolymers Consisting of Polyfluorene and Polystyrene

TM-Free and TM-Catalyzed Mechanosynthesis of Functional Polymers

Parallel Polymer Reactions of a Polyfluorene Derivative by Electrochemical Oxidation and Reduction

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