Analogs of disperse red 167 containing a built-in photostabiliser moiety
1992; Elsevier BV; Volume: 20; Issue: 3 Linguagem: Inglês
10.1016/0143-7208(92)80043-m
ISSN1873-3743
AutoresHarold S. Freeman, James C. Posey,
Tópico(s)Photopolymerization techniques and applications
ResumoThe effects of incorporating a benzophenone stabilizer into the structure of Disperse Red 167 have been investigated. In this study, four different substituents in the parent dye structure were substituted sequentially to build the desired stabilizer moiety into the backbone of the prototype dye. Although the lightfastness of the dyes prepared was not superior to that of the parent dye, each possessed better sublimation fastness than the prototype and served as a useful probe of the requirements for high light-fastness on polyester. The structure of each new compound was confirmed by [1H] NMR, elemental analysis, and mass spectrometry. In addition, the detailed structure of one of the analogs was determined from X-ray diffractometer data.
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