Research Article

Facile synthesis of 5,8-linked quinoline-based copolymers

  1. Manisha Tomar1,
  2. Nigel T Lucas2,
  3. Hun Kim3,
  4. Frédéric Laquai3,
  5. Klaus Müllen4,
  6. Josemon Jacob1,*

Article first published online: 11 APR 2012

DOI: 10.1002/pi.4211

Issue

Polymer International

Polymer International

Volume 61, Issue 8, pages 1318–1325, August 2012

Additional Information

How to Cite

Tomar, M., Lucas, N. T., Kim, H., Laquai, F., Müllen, K. and Jacob, J. (2012), Facile synthesis of 5,8-linked quinoline-based copolymers. Polym. Int., 61: 1318–1325. doi: 10.1002/pi.4211

Author Information

  1. 1

    Centre for Polymer Science and Engineering, Indian Institute of Technology, Hauz Khas, New Delhi 110016, India

  2. 2

    Department of Chemistry, University of Otago, Dunedin 9054, New Zealand

  3. 3

    Max Planck Research Group for Organic Optoelectronics, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany

  4. 4

    Synthetic Chemistry Group, Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany

*Centre for Polymer Science and Engineering, Indian Institute of Technology Delhi, India 110016.

Publication History

  1. Issue published online: 17 JUL 2012
  2. Article first published online: 11 APR 2012
  3. Manuscript Accepted: 22 DEC 2011
  4. Manuscript Revised: 7 DEC 2011
  5. Manuscript Received: 29 AUG 2011

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Keywords:

  • polyquinoline;
  • fluorene;
  • blue-emitters;
  • Suzuki cross-coupling

Abstract

Coupling quinoline at its 5,8-positions provides a facile way to copolymerize quinoline with other conjugated moieties without breaking conjugation. Model compounds containing quinoline units, either at the periphery or in the core, were synthesized and one of them was characterized by X-ray diffraction. Copolymers of quinoline and 9,9-dialkylfluorene (R = n-octyl or 2-ethylhexyl) were synthesized in good yield by palladium-catalysed Suzuki cross-coupling. The copolymers are highly soluble in common organic solvents and gel permeation chromatography measurements against polystyrene standards showed the number-average molecular weight to be in the range (1.02–2.06) × 104 g mol−1. Both copolymers emit in the blue region with an emission maximum centred at 435 nm. Copyright © 2012 Society of Chemical Industry

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