| dc.creator |
Cabuk, Mehmet |
|
| dc.creator |
YAVUZ, Mustafa |
|
| dc.creator |
Unal, Halil Ibrahim |
|
| dc.date |
2016-12-04T21:00:00Z |
|
| dc.date.accessioned |
2020-10-06T10:51:37Z |
|
| dc.date.available |
2020-10-06T10:51:37Z |
|
| dc.identifier |
a795b7ac-43b8-4b08-865b-e882e9c9e950 |
|
| dc.identifier |
10.1016/j.colsurfa.2016.06.014 |
|
| dc.identifier |
https://avesis.sdu.edu.tr/publication/details/a795b7ac-43b8-4b08-865b-e882e9c9e950/oai |
|
| dc.identifier.uri |
http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/68563 |
|
| dc.description |
Electrokinetic properties of Polythiophene-graft-Chitosan (PT-g-CS) copolymer were investigated by means of zeta (zeta)-potential measurements as a function of pH, electrolytes, surfactants, and temperature in aqueous medium. The c-Potential of pure PT was observed to enhance from +25 mV to +36 mV after grating with polycationic CS. Concomitantly, the isoelectric point of the pure PT shifted from 6.4 to 8.3. The zeta-Potential of PT-g-CS dispersion also shifted to more positive regions with increasing valency of the electrolytes and concentrations of cationic surfactant (cetyltrimethylammonium bromide). The c-Potential of PT-g-CS was determined to be +38 mV which indicated colloidal stability in silicone oil (SO) medium. Electrorheological (ER) and viscoelastic measurements revealed that the PT-g-CS/SO system has elasto-viscous behavior under applied electric field strengths. The yield stress of the ER fluid was determined to be a function of the electric field strength in a power law form as tau(y) = E-1.55 which obey to the conduction model. Creep and creep-recovery tests revealed reversible non-linear viscoelastic deformations of %31<%40<%43 under E=1; 2 and 3 kV/mm conditions. (C) 2016 Elsevier B.V. All rights reserved. |
|
| dc.language |
eng |
|
| dc.rights |
info:eu-repo/semantics/closedAccess |
|
| dc.title |
Electrokinetic, electrorheological and viscoelastic properties of Polythiophene-graft-Chitosan copolymer particles |
|
| dc.type |
info:eu-repo/semantics/article |
|