SFRP Synthesis of Acenaphthylene Oligomers and Block Copolymers. Potential Light Harvesting Structures 


Vol. 32,  No. 7, pp. 2377-2384, Jul.  2011
10.5012/bkcs.2011.32.7.2377


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  Abstract

Azo-acenaphthylene oligomers with repeating acenaphthylene units “n” up to 4, 5, 7, 17 and 19 have been prepared successfully using nitroxide mediated Stable Free Radical Polymerization (SFRP). Azoacenaphthylene oligomers, reversibly end-capped by the stable nitroxide 2,2,6,6-tetramethyl-1-piperidinoxyl (TEMPO), were further reacted via radical addition to 4-(naphthalenemethoxy)styrene monomer for diblock co-polymer formation. Characterization of the oligomers and diblock co-polymers was accomplished using MALDI-MS supported by GPC (Gel Permeation Chromatography) and 1H NMR spectrometry. MALDI-MS afforded definitive results by providing an inter-peak interval of 152 (m/z), corresponding to acenaphthylene monomer, and inter-peak interval of 260 (m/z) for the naphthalenemethoxystyrene monomer unit in block copolymers. Our study opens the way to control the number of repeat units in the oligomers. Further these oligomers can be tailored with various monomers for the formation of block copolymers.

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  Cite this article

[IEEE Style]

D. Ali, Z. Ahmed, J. M. Dust, P. M. Kazmaier, ¶, E. Buncel, "SFRP Synthesis of Acenaphthylene Oligomers and Block Copolymers. Potential Light Harvesting Structures," Bulletin of the Korean Chemical Society, vol. 32, no. 7, pp. 2377-2384, 2011. DOI: 10.5012/bkcs.2011.32.7.2377.

[ACM Style]

Dildar Ali, Zaheer Ahmed, Julian M. Dust, Peter M. Kazmaier, ¶, and Erwin Buncel. 2011. SFRP Synthesis of Acenaphthylene Oligomers and Block Copolymers. Potential Light Harvesting Structures. Bulletin of the Korean Chemical Society, 32, 7, (2011), 2377-2384. DOI: 10.5012/bkcs.2011.32.7.2377.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949