To the mechanism of polyelectrolyte gel periodic acting in the constant DC electric field / Blyakhman F. A.,Safronov A. P.,Shklyar T. F.,Filipovich M. A. // SENSORS AND ACTUATORS A-PHYSICAL. - 2015. - V. 229, l. . - P. 104-109.

ISSN/EISSN:

0924-4247 / нет данных

Type:

Article

Abstract:

If the elongated filament of sodium polyacrylate gel immersed in 0.8 mM CaCl2 solution is placed in a DC electrical field across the field lines with one end affixed, up to four consequent sways of strip's free end can be observed. This phenomenon is still not clear as it takes place in the constant electric field with the constant polarity. To disclose underlying mechanism of the periodic bending, angle of the gel free end displacement (inclination) from the vertical (initial) position, the apparent area and the lengths of the cathodal and anodal borders of the projective image of the gel stripe were monitored. It was found, both the cathodal and the anodal sides of the stripe followed the trend of the gel shrinkage, but with a substantial time lag between them. The misbalance between the cathodal and the anodal contraction of the gel resulted in the strip periodic acting. The underlying mechanism of this phenomenon based on ionic diffusion and ionic exchange due to oriented ionic flux in a DC electric field is proposed. (C) 2015 Elsevier B.V. All rights reserved.

Author keywords:

Polyelectrolyte gels; DC electric field; Mechanical behavior ARTIFICIAL MUSCLES; POLYMER GELS; DEFORMATION

DOI:

10.1016/j.sna.2015.03.030

Web of Science ID:

ISI:000355883700014

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUN 15
Publisher	ELSEVIER SCIENCE SA
Address	PO BOX 564, 1001 LAUSANNE, SWITZERLAND
Language	English
Keywords-Plus	ARTIFICIAL MUSCLES; POLYMER GELS; DEFORMATION
Research-Areas	Engineering; Instruments \& Instrumentation
Web-of-Science-Categories	Engineering, Electrical \& Electronic; Instruments \& Instrumentation
Author-Email	Feliks.Blyakhman@urfu.ru
ORCID-Numbers	Blyakhman, Felix/0000-0003-4434-2873
Funding-Acknowledgement	Russian Foundation for Basic Research {[}13-08-01050a, 13-03-96068r-a]
Funding-Text	The study was supported by the Russian Foundation for Basic Research (Grants 13-08-01050a and 13-03-96068r-a).
Number-of-Cited-References	22
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	20
Journal-ISO	Sens. Actuator A-Phys.
Doc-Delivery-Number	CK0GM