Initiation via Haloboration in Living Cationic Polymerization. 3. Synthesis and Characterization of Functional Star-Branched Polyisobutylenes
| Autor: | Stephen T. McKenna, Linfu Wang, Rudolf Faust |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Telechelic polymer
Polymers and Plastics Organic Chemistry Cationic polymerization Solid-state Nuclear magnetic resonance spectroscopy Living cationic polymerization Divinylbenzene Inorganic Chemistry chemistry.chemical_compound chemistry Yield (chemistry) Polymer chemistry Materials Chemistry Chemical solution |
| Zdroj: | Macromolecules. 28:4681-4685 |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/ma00117a046 |
| Popis: | Functional star-branched polyisobutylenes (PIBs) were prepared in high yield based on living cationic polymerization via haloboration initiation. First, living PIBs carrying Cl 2 B- head groups were prepared via haloboration initiation. Subsequently, the living ends were reacted with a small amount of divinylbenzene (DVB). The products were completely soluble and consisted of a cross-linked core of poly(DVB) to which almost-monodisperse PIB chains were radially attached. The star-branched PIBs were characterized by solution and solid-state NMR spectroscopy and size-exclusion chromatography using triple detection, RI, UV, and light scattering detectors. |
| Databáze: | OpenAIRE |
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