1030624-07-7Relevant articles and documents
Synthesis and spectroscopic properties of a soluble semiconducting porphyrin polymer
Schmitz, Robert A.,Liddell, Paul A.,Kodis, Gerdenis,Kenney, Michael J.,Brennan, Bradley J.,Oster, Nolan V.,Moore, Thomas A.,Moore, Ana L.,Gust, Devens
, p. 17569 - 17579 (2014)
A semiconducting porphyrin polymer that is solution processable and soluble in organic solvents has been synthesized, and its spectroscopic and electrochemical properties have been investigated. The polymer consists of diarylporphyrin units that are linked at meso-positions by aminophenyl groups, thus making the porphyrin rings an integral part of the polymer backbone. Hexyl chains on two of the aryl groups impart solubility. The porphyrin units interact only weakly in the ground electronic state. Excitation produces a local excited state that rapidly evolves into a state with charge-transfer character (CT) involving the amino nitrogen and the porphyrin macrocycle. Singlet excitation energy is transferred between porphyrin units in the chain with a time constant of ca. 210 ps. The final CT state has a lifetime of several nanoseconds, and the first oxidation of the polymer occurs at ca. 0.58 V vs. SCE. These properties make the polymer a suitable potential excited state electron donor to a variety of fullerenes or other acceptor species, suggesting that the polymer may find use in organic photovoltaics, sensors, and similar applications. This journal is the Partner Organisations 2014.
Synthesis and characterization of stilbene derivatives for possible incorporation as smart additives in polymers used as packaging films
Day, Gary M.,Howell, Owen T.,Metzler, Michael R.,Woodgate, Paul D.
, p. 425 - 434 (2007/10/03)
Several series of stilbene derivatives for possible use as smart additives in polymers used as packaging films have been prepared and characterized. Differential scanning calorimetry was performed on some of the stilbenes in order to determine any liquid crystal properties. Those compounds which had multiple phase transitions were also shown to have two liquid crystalline phases according to optical microscopy.