Please use this identifier to cite or link to this item:
|Title:||Synthesis of a novel optically tunable amphiphilic poly(p-phenylene): Influence of hydrogen bonding and metal complexation on optical properties1||Authors:||Baskar, C.
|Issue Date:||28-Aug-2001||Citation:||Baskar, C., Lai, Y.-H., Valiyaveettil, S. (2001-08-28). Synthesis of a novel optically tunable amphiphilic poly(p-phenylene): Influence of hydrogen bonding and metal complexation on optical properties1. Macromolecules 34 (18) : 6255-6260. ScholarBank@NUS Repository. https://doi.org/10.1021/ma010366b||Abstract:||A series of optically tunable amphiphilic conjugated polymers, poly(2-hydroxy-5-alkoxy-p-phenylene) (1) containing long alkyl chains, were prepared by Suzuki polycondensation using 2,5-dibromo-1-benzyloxy-4-alkoxybenzene and bis(boronic ester) monomers. All polymers showed good solubility in common organic solvents such as tetrahydrofuran (THF), chloroform, toluene, and dimethylformamide (DMF). Optical properties of all polymers were investigated in THF at room temperature under neutral conditions, and emission maxima were observed in the violet region (λemi = 401-403 nm). By the addition of stoichiometric amount of a base (e.g., aqueous NaOH solution), absorption maxima shifted to the blue region (λemi = 474-468 nm). The ionochromic effect of target polymers with transition metal ions such as Fe3+, Cu2+, and Co2+ was also reported. In the presence of metal ions, the optical properties of polymers showed interesting tunability of emission maxima, Δλmax (140-26 nm). X-ray diffraction studies using powdered polymer samples indicated an ordered lamella-type lattice.||Source Title:||Macromolecules||URI:||http://scholarbank.nus.edu.sg/handle/10635/95114||ISSN:||00249297||DOI:||10.1021/ma010366b|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Aug 21, 2019
WEB OF SCIENCETM
checked on Aug 13, 2019
checked on Aug 17, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.