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Monolayers of ω-Hydroxyalkyldimethyloctadecylammonium Bromide at Water-Air Interface

✍ Scribed by Masakatsu Hato; Hiroyuki Minamikawa; Kaoru Okamoto; Makio Iwahashi

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
422 KB
Volume
161
Category
Article
ISSN
0021-9797

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✦ Synopsis

A series of bipolar surfactants, (\omega)-hydroxyalkyldimethyloctadecylammonium bromide {HADMOA( (n) ); (\omega)-hydroxyalkyl chain length (\boldsymbol{n}=\mathbf{1 0}, 12,14,16,18,20}) were synthesized and the monolayer behavior at the air-water interface was studied. The isotherms of the bipolar HADMOA(18) were compared with those for the monopolar counterpart DMDOA (dimethyldioctadecylammonium bromide). The effect of the (\omega)-hydroxyalkly chain length was also examined. The results were as follows:

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Kinetics of Destabilization of Calcitoni
Kinetics of Destabilization of Calcitonin Monolayers at the Air/Water Interface
✍ Nuria Vila Romeu; Patrycja Dynarowicz-Ł a̧; José Miñones Trillo; José R. Seoane; 📂 Article 📅 1998 🏛 Elsevier Science 🌐 English ⚖ 88 KB

## NOTE Kinetics of Destabilization of Calcitonin Monolayers at the Air/Water Interface interface by measuring the area loss at different surface pressures and various temperatures as well as pH values of the subphase. Monolayer behavior and desorption of calcitonin molecules from Salmon calcitoni