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A series of novel regiospecific MDMO-PPV polymers have been synthesized by the copolymerization of the mixture of the two isomers of the asymmetrically substituted monomer via the sulphinyl precursor route. As the weight percent of either one of the two isomers is increased above ∼80 percent, the solubility of the resulting polymer is reduced. This is attributed to enhanced interchain ordering in...
Results of controlled degradation experiments performed with the individual components and with the actual mixture used in plastic solar cells are shown. A testing procedure for the stability and for degradation effects under illumination in controlled atmosphere using FTIR-ATR spectroscopy is presented. The method yields rapid information on the degradation processes on molecular level within a few...
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