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The thermal cis—trans isomerization of azo dyes dispersed in polymeric blends as a probe for characterizing their morphology

✍ Scribed by Ernestina Dubini-Paglia; Pier Luigi Beltrame; Raffaella Osti; Bruno Marcandalli; Alberto Seves

Book ID
103545332
Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
521 KB
Volume
18
Category
Article
ISSN
0143-7208

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Thermal cis–trans isomerization of 4-die
Thermal cis–trans isomerization of 4-diethylamino-4′-methoxyazobenzene in poly(D(−)3-hydroxybutyrate) and its hydroxyvalerate copolymer as a probe for characterizing their aging
✍ Ernestina Dubini-Paglia; Antonella Castelli; Pier Luigi Beltrame; Alberto Seves; 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 522 KB

The aging of bacterial polyester poly(~(-)3-hydroxybutyrate) has been studied by coloring it with 4-diethylamino-4'-methoxyazobenzene and determining the reduction in isomerization rate of the dye with aging, such a reduction being a measure of the loss in polymer sequential mobility that is respons