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Paper Abstract and Keywords
Presentation 2017-07-27 11:10
Observation of oscillation and relaxation of ultrasonically induced birefringence in aqueous solutions of CTAB-NaSal and CTAB-NapTS
Tatsuro Matsuoka, Yuta Matsuda (Nagoya Univ.) US2017-34
Abstract (in Japanese) (See Japanese page) 
(in English) Aqueous solutions with addition of sodium salicylate (NaSal) or sodium toluenesulfonate (NapTS) as organic salts to cetyltrimethylammonium bromide (CTAB) as surfactant form threadlike micelles. FFT analyses of the vibration component of the ultrasonic induced birefringence and analyses of the relaxation mode were carried out by changing $C_D$, fixing the $C_S - C_D = 20mM$ where the surfactant molarity is $C_D$ and the organic salt molarity is $C_S$. As the $C_S$ increased, the peak frequency of the vibration mode with the largest amplitude increased. The peak frequency was consistent between solutions with addition of NaSal and of NapTS system. Relaxation time increases with increasing $C_S$. It is suggested that the origin of relaxation time in this study are different from that obtained by rheological measurements.
Keyword (in Japanese) (See Japanese page) 
(in English) ultrasonically induced birefringence / cetyltrimethylammonium bromide / sodium salicylate / sodium toluenesulfonate / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 155, US2017-34, pp. 21-24, July 2017.
Paper # US2017-34 
Date of Issue 2017-07-20 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee US  
Conference Date 2017-07-27 - 2017-07-27 
Place (in Japanese) (See Japanese page) 
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Paper Information
Registration To US 
Conference Code 2017-07-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Observation of oscillation and relaxation of ultrasonically induced birefringence in aqueous solutions of CTAB-NaSal and CTAB-NapTS 
Sub Title (in English)  
Keyword(1) ultrasonically induced birefringence  
Keyword(2) cetyltrimethylammonium bromide  
Keyword(3) sodium salicylate  
Keyword(4) sodium toluenesulfonate  
1st Author's Name Tatsuro Matsuoka  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Yuta Matsuda  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2017-07-27 11:10:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2017-34 
Volume (vol) vol.117 
Number (no) no.155 
Page pp.21-24 
Date of Issue 2017-07-20 (US) 

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