Constructing star polymersvia modular ligation strategies
| Autor: | Ozcan Altintas, Andrew P. Vogt, Christopher Barner-Kowollik, Umit Tunca |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics business.industry Chemistry Organic Chemistry Alkyne Bioengineering Polymer Modular design Star (graph theory) Biochemistry Combinatorial chemistry Cycloaddition chemistry.chemical_compound Star polymer Polymer chemistry Azide business Macromolecule |
| Zdroj: | Polymer Chemistry. 3:34-45 |
| ISSN: | 1759-9962 1759-9954 |
| DOI: | 10.1039/c1py00249j |
| Popis: | Branched polymers result in a more compact structure in comparison to linear polymers of identical molecular weight, due to their high segment density which affects the crystalline, mechanical, and viscoelastic properties of the polymer. Star polymers constitute the simplest form of branched macromolecules where all of the chains—or arm segments—of one macromolecule are linked to a centre defined as the core. Over recent years, modular ligation reactions—some of which adhere to click criteria—have enabled the synthesis of a variety of star polymersvia efficient polymer–polymer conjugations. While the modified Huisgen [3 + 2] dipolar copper catalyzed azide and alkyne cycloaddition (CuAAC) has been widely employed for macromolecular star synthesis, Diels–Alder and hetero Diels–Alder reactions offer alternative pathways which allow for similarly efficient macromolecular conjugations. Moreover, combinations of these protocols afford the synthesis of more complex star polymer structures which previously had not been achievable. |
| Databáze: | OpenAIRE |
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