Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 136, Issue 43, Pages 15130-15133Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja5075739
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- NSERC
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Abundant and environmentally benign metal-free silicon-based reagents, including chloride surface-terminated silicon nanocrystals (Cl-SiNCs) and silicon wafers as well as molecular chlorosilanes, were explored as catalysts for the synthesis of poly-3-hexylthiophene (P3HT) at room temperature. Cl-SiNC catalysts exhibit the highest activity of those investigated, and systems based upon single-crystal silicon wafers provide convenient, straightforward purification. The as-prepared P3HT exhibits moderate molecular weights and bears H/Br or Br/Br end groups; these properties will allow direct application and also facilitate their use as macroinitiators in the syntheses of block and/or telechelic polymers. The silicon-based systems are expected to provide an efficient metal-free catalytic preparation of functional polymers.
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