FORMATION OF PARAMAGNETIC SPECIES UPON RADIOLYSIS OF A POLYCARBONATE-POLY(BUTYLENE TEREPHTHALATE) SYSTEMстатья
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Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
Местоположение издательства:Road Town, United Kingdom
Первая страница:250
Последняя страница:255
Аннотация:The formation of paramagnetic species upon low-temperature radiolysis of a polycarbonate-poly(butylene terephthalate) (PC-PBTP) system was studied by ESR spectroscopy. The radiation-chemical yields of paramagnetic species in pure polymers and their blends with various blending times were measured. The decrease of G values for samples with a long blending time was explained by the suppression of formation of neutral radicals from the PC units. The formation of GO-separated radical pairs, which result from the PC fragments, is suppressed efficiently as the blending time increases. It is concluded that the spectral parameters of the radical pairs are the most sensitive features to the change in the microenvironment of the radiolysis products.