Self-Assembly of Amphiphilic Conjugated Diblock Copolymers into One-Dimensional Nanoribbons

Autor:	Amanda C. Kamps, Ma Helen M. Cativo, Michael Fryd, So Jung Park
Rok vydání:	2013
Předmět:	chemistry.chemical_classification Materials science Polymers and Plastics Hydrogen bond Organic Chemistry Polymer Conjugated system Inorganic Chemistry Solvent chemistry.chemical_compound chemistry Amphiphile Polymer chemistry Materials Chemistry Copolymer Self-assembly Ethylene glycol
Zdroj:	Macromolecules. 47:161-164
ISSN:	1520-5835 0024-9297
DOI:	10.1021/ma4021483
Popis:	The colloidal self-assembly of a new conjugated diblock copolymer of a polythiophene derivative, poly[3-(2,5,8,11-tetraoxatridecanyl)thiophene]-block-poly(ethylene glycol) (PTOTT-b-PEG), led to various well-defined assembly structures such as vesicles, sheets, and nanoribbons. A unique and technologically relevant nanoribbon structure with a dimension reaching tens of micrometers was formed in water when polar protic solvents were used as initial cosolvents. Self-assembly of PTOTT-b-PEG in various solvent compositions and polymer concentrations indicated that the hydrogen bonding between the diblock copolymer and the self-assembly medium plays an important role in determining the self-assembly structure and that the final assembly structure should be the result of a delicate interplay between hydrogen bonding and π–π interactions. This study demonstrates that the addition of hydrogen bonding capability and amphiphilicity in the self-assembly of conjugated polymers can lead to many interesting well-defined...
Databáze:	OpenAIRE
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