Rapid synthesis of fluorescent single-chain nanoparticles via photoinduced step-growth polymerization of pendant carbazole units
| Autor: | Binnur Aydogan Temel, Ceren Pamukcu, Deniz Kilic, Gokhan Temel, Demet Karaca Balta |
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| Přispěvatelé: | TEMEL, BİNNUR |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Polymers and Plastics
Chemistry Carbazole Organic Chemistry Radical polymerization Cationic polymerization technology industry and agriculture General Physics and Astronomy 02 engineering and technology Degree of polymerization 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences 0104 chemical sciences Step-growth polymerization chemistry.chemical_compound Polymerization Materials Chemistry Side chain Copolymer KILIÇ D. Pamukcu C. Balta D. K. Temel B. Temel G. -Rapid synthesis of fluorescent single-chain nanoparticles via photoinduced step-growth polymerization of pendant carbazole units- EUROPEAN POLYMER JOURNAL cilt.125 2020 0210 nano-technology |
| Popis: | An easy and rapid strategy is developed to synthesize light responsive single-chain nanoparticles via photoinduced radical coupling of carbazole moieties in the side chain of polymer. Firstly, nitroxide-mediated radical polymerization is carried out for the synthesis of chloride functional styrenic copolymer. Pendant chloride groups of the polystyrene copolymer are converted to carbazole units by one-step modification. Constructed functional polymer undergoes photochemically intramolecular crosslinking using carbazole step-growth polymerization. Size of the nanoparticles can be manipulated by changing the degree of polymerization which is dependent to the dose of UV exposure. Achieved single-chain nanoparticles exhibit higher glass transition temperatures and lower hydrodynamic radii compared to their linear analogue. Polymeric nanoparticles are successfully employed for the cyclohexane oxide polymerization as cationic photoinitiators in the presence of an iodonium salt. |
| Databáze: | OpenAIRE |
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