Ultrasonic absorption studies of aqueous solutions of nonionic surfactants in relation with critical phenomena and micellar dynamics

1987 ◽  
Vol 91 (23) ◽  
pp. 5957-5960 ◽  
Author(s):  
Arun. Borthakur ◽  
Raoul. Zana
Keyword(s):  
Aqueous Solutions ◽  
Critical Phenomena ◽  
Nonionic Surfactants ◽  
Ultrasonic Absorption ◽  
Absorption Studies

Ultrasonic absorption studies in aqueous solutions of modified β-cyclodextrins

1990 ◽  
Vol 68 (12) ◽  
pp. 2131-2136 ◽  
Author(s):  
David J. Jobe ◽  
Ronald E. Verrall ◽  
Vincent C. Reinsborough
Keyword(s):  
Hydrogen Bond ◽  
Aqueous Solutions ◽  
Water Exchange ◽  
Relaxation Frequency ◽  
Ultrasonic Absorption ◽  
Frequency Range ◽  
Bond Rotation ◽  
Decyltrimethylammonium Bromide ◽  
Absorption Studies

Ultrasonic absorption studies over the frequency range 0.6–210 MHz were conducted in aqueous solutions of the following modified β-cyclodextrins (β-CD): 2,6-O-dimethyl-β-CD (DMβCD), 2,3,6-O-trimethyl-β-CD(TMβCD), and hydroxypropyl-β-CD (HPβCD). Anomalous ultrasonic absorption found in the three systems was attributed to three relaxations in the DMβCD and HPβCD systems and two in the TMβCD system. These relaxations were assigned to hydrogen bond "wig-wagging", to CD cavity water exchange, and to bond rotation within the CD units. The 1:1 DMβCD/decyltrimethylammonium bromide system was also investigated ultrasonically in solution. Keywords: ultrasonic absorption, modified β-cyclodextrins, surfactant inclusion, relaxation frequency.

Ultrasonic absorption studies of aqueous solutions of tert-butyl alcohol

1977 ◽  
Vol 81 (22) ◽  
pp. 2122-2126 ◽  
Author(s):  
Kiyoshi Tamura ◽  
Michio Maekawa ◽  
Tatsuya Yasunaga
Keyword(s):  
Aqueous Solutions ◽  
Butyl Alcohol ◽  
Ultrasonic Absorption ◽  
Tert Butyl ◽  
Tert Butyl Alcohol ◽  
Absorption Studies

scholarly journals Ultrasonic Absorption Studies of the Nickel(II) Amino Acid Complexes in Aqueous Solutions

1978 ◽  
Vol 51 (9) ◽  
pp. 2596-2600 ◽  
Author(s):  
Shoji Harada ◽  
Kazumi Higashi ◽  
Kiyoshi Tamura ◽  
Michinori Hiraishi ◽  
Tatsuya Yasunaga
Keyword(s):  
Amino Acid ◽  
Aqueous Solutions ◽  
Ultrasonic Absorption ◽  
Amino Acid Complexes ◽  
Absorption Studies
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