Five polypropylene films were prepared having different crystallinity and morphology, the latter having been modified by stretching. They were colored with azo dyes XC6H4N=N&H4N(C,H5), (where X=H, OCH,, CN, and NO,). The kinetics of the thermal cis-trans isomerization of these dyes has been studied
Thermal cis–trans isomerization of azo dye chrysophenine in cellulose matrices: Effect of morphology
✍ Scribed by Alberto Seves; Maria Romanó; Ernestina Dubini-Paglia; Pier Luigi Beltrame; Bruno Marcandalli
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 399 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0021-8995
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The thermal cis-trans isomerization of azo dyes XC6H4N=NC6H4N(C2H5)2 (where X is H, OCH3, CN, and NOz) in poly(ethy1ene terephthalate) matrices, below the glass transition temperature, and in dibutylphthalate solutions has been studied kinetically in the temperature range 20-60°C. Kinetic behavior i
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