In:
Polymers for Advanced Technologies, Wiley, Vol. 21, No. 4 ( 2010-04), p. 256-262
Abstract:
Two alternative copolymers of thieno[3,4b]pyrazine (TPZ) and triphenylamine (TPA) or phenylene (Ph), P(TPA‐TPZ) and P(Ph‐TPZ), were synthesized by Wittig–Horner polycondensation and characterized by 1 H NMR, elemental analysis, GPC, TGA, cyclic voltammetry, UV–Vis absorption, and photoluminescence (PL) spectroscopy. The polymers are soluble in common organic solvents and possess good thermal stability. Both of them shows strong solvatochromism phenomenon when dissolved in different solvents. The fluorescence of the copolymer solutions is efficiently quenched upon the addition of Hg 2+ , indicating that the two copolymers could be good Hg 2+ detectors. More interestingly, the copolymers show high selectivity for the Hg 2+ detection and P(TPA‐TPZ) shows higher sensitivity and selectivity toward the Hg 2+ detection than P(Ph‐TPZ) does in the presence of other competing metal ions. The results imply that the conjugated polymers (CPs) containing the thieno[3,4b]pyrazine moiety are promising materials for chemosensors. Copyright © 2009 John Wiley & Sons, Ltd.
Type of Medium:
Online Resource
ISSN:
1042-7147
,
1099-1581
Language:
English
Publisher:
Wiley
Publication Date:
2010
detail.hit.zdb_id:
1481102-9
