Post-polymerisation functionalisation of conjugated polymer backbones and its application in multi-functional emissive nanoparticles
| Autor: | Heeney, MJ, Creamer, A, Wood, C, Howes, P, Casey, A, Cong, S, Marsh, A, Godin, R, Panidi, J, Anthopoulos, T, Burgess, C, Wu, T, Fei, Z, McLachlan, M, Stevens, M |
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| Přispěvatelé: | Engineering and Physical Sciences Research Council, British Council (Turkey), EPSRC, Engineering & Physical Science Research Council (E, Wellcome Trust, Commission of the European Communities, British Heart Foundation, Engineering & Physical Science Research Council (EPSRC) |
| Rok vydání: | 2018 |
| Předmět: |
SOLAR-CELLS
DOTS Science & Technology CLICK-CHEMISTRY CROSS-LINKING Polymers Surface Properties ORGANIC ELECTRONICS Polymerization Multidisciplinary Sciences Semiconductors NARROW-BAND EMISSION Science & Technology - Other Topics BIOLOGICAL APPLICATIONS Nanoparticles Sulfhydryl Compounds NEAR-INFRARED FLUORESCENCE BRIGHT ULTRABRIGHT |
| Popis: | Backbone functionalisation of conjugated polymers is crucial to their performance in many applications, from electronic displays to nanoparticle biosensors, yet there are limited approaches to introduce functionality. To address this challenge we have developed a method for the direct modification of the aromatic backbone of a conjugated polymer, post-polymerisation. This is achieved via a quantitative nucleophilic aromatic substitution (SNAr) reaction on a range of fluorinated electron deficient comonomers. The method allows for facile tuning of the physical and optoelectronic properties within a batch of cons istent molecular weight and dispersity. It also enables the introduction of multiple different fu nctional groups onto the polymer backbone in a controlled manner. To demonstrate the versatility of this reaction, we designed and synthesised a range of emissive poly(9,9-dioctylfluorene- alt -benzothiadiazole) (F8BT) based polymers for the creation of mono and multifunctional semiconducting polymer nanoparticles (SPNs) capable of two orthogonal bioconjugation reactions on the same surface. |
| Databáze: | OpenAIRE |
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