Control of pi-stacking for highly emissive poly(p-phenylenevinylene)s: synthesis and photoluminescence of new tricyclodecane substituted bulky poly(p-phenylenevinylene)s and its copolymers

The Journal of Physical Chemistry. B
S R Amrutha, M Jayakannan

Abstract

In the present work, we have demonstrated a facile approach to increase the luminescence of the poly (p-phenylenevinylene)s via controlling the molecular aggregates induced by pi-stacking. We have synthesized new bulky tricyclodecane (TCD) substituted PPVs: poly(2-methoxy-5-tricyclodecanemethyleneoxy-1,4-phenylenevinylene) (MTCD-PPV), poly(bis-2,5-tricyclodecanemethyleneoxy-1,4-phenylenevinylene) (BTCD-PPV), and a series of symmetrically substituted bulky PPV copolymers (P-1-P-7) covering the entire composition range from 0 to 100 mol %. The structures of the monomers and polymers were confirmed by 1H NMR and FTIR, and the molecular weights were determined by gel permeation chromatography. The composition analysis by NMR revealed that the bulky monomer was highly reactive and the incorporation of bulky units in MEH-PPV increased irrespective of the feed ratio. The polymers possess good solubility, high molecular weights, good thermal stability, and so forth. The molecular weights of the PPV copolymers were also significantly affected by the bulky substitution: the higher the incorporation of bulky units, the lower the molecular weight. The absorption and emission studies revealed that there was no influence on the MEH-PPV by TC...Continue Reading

Citations

Oct 15, 2014·ACS Applied Materials & Interfaces·Karnati Narasimha, Manickam Jayakannan
Nov 27, 2010·Physical Chemistry Chemical Physics : PCCP·Joshua D FurmanAnthony K Cheetham
Apr 26, 2016·Soft Matter·Young-Jae JinGiseop Kwak
Oct 13, 2010·Physical Chemistry Chemical Physics : PCCP·Hong MoSeth C Rasmussen
Jun 18, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Amit Saha RoyPrasanta Ghosh
Jul 1, 2013·ChemPlusChem·Ayyakkalai BalamuruganManickam Jayakannan
Mar 24, 2009·The Journal of Physical Chemistry. B·S R Amrutha, M Jayakannan

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