Modulating Rheological Properties of Supramolecular Networks by pH-Responsive Double-Axle Intrusion into γ-Cyclodextrin

2007 ◽  
Vol 19 (3) ◽  
pp. 396-400 ◽  
Author(s):  
Y.-K. Joung ◽  
T. Ooya ◽  
M. Yamaguchi ◽  
N. Yui
Keyword(s):  
Rheological Properties ◽  
Ph Responsive ◽  
Supramolecular Networks

Design of a C-b-(A-co-B)-b-C telechelic polyampholyte pH-responsive gelator

2016 ◽  
Vol 7 (11) ◽  
pp. 2121-2129 ◽  
Author(s):  
George Gotzamanis ◽  
Konstantinia Papadimitriou ◽  
Constantinos Tsitsilianis
Keyword(s):  
Rheological Properties ◽  
Ph Responsive ◽  
Central Block ◽  
Ph Dependent ◽  
Associative Polymer

We report the synthesis and the pH dependent structural and rheological properties of a telechelic polyampholyte associative polymer, composed of a random polyampholyte central block, end-capped by shorter hydrophobic blocks [C-b-(A-co-B)-b-C block/random terpolymer type].

Molecular simulation study on the rheological properties of a pH-responsive clean fracturing fluid system

Fuel ◽  
2019 ◽  
Vol 253 ◽  
pp. 677-684 ◽  
Author(s):  
Guang Zhao ◽  
Zhihu Yan ◽  
Feng Qian ◽  
Haonan Sun ◽  
Xia Lu ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Molecular Simulation ◽  
Simulation Study ◽  
Ph Responsive ◽  
Fracturing Fluid ◽  
Fluid System

scholarly journals Rheological Properties and Gelation of pH-Responsive P(HEMA/MAA) Nano-Microgel Dispersions

2011 ◽  
Vol 27 (08) ◽  
pp. 1919-1925
Author(s):  
SHEN Ying-Hua ◽  
◽  
LIU Hui-Min ◽  
LI Guo-Qing ◽  
ZHAI Zhi-Guo ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Ph Responsive

Rheological properties and drug release characteristics of pH-responsive hydrogels

2004 ◽  
Vol 94 (5) ◽  
pp. 2057-2064 ◽  
Author(s):  
Tejraj M. Aminabhavi ◽  
Sunil A. Agnihotri ◽  
B. Vijaya Kumar Naidu
Keyword(s):  
Drug Release ◽  
Rheological Properties ◽  
Ph Responsive ◽  
Responsive Hydrogels

Microstructure and rheological properties of pH-responsive core–shell particles

Polymer ◽  
2005 ◽  
Vol 46 (23) ◽  
pp. 10066-10076 ◽  
Author(s):  
B.H. Tan ◽  
K.C. Tam ◽  
Y.C. Lam ◽  
C.B. Tan
Keyword(s):  
Rheological Properties ◽  
Core Shell ◽  
Ph Responsive ◽  
Shell Particles

scholarly journals pH response and molecular recognition in a low molecular weight peptide hydrogel

2015 ◽  
Vol 13 (2) ◽  
pp. 561-569 ◽  
Author(s):  
Stefanie C. Lange ◽  
Jan Unsleber ◽  
Patrick Drücker ◽  
Hans-Joachim Galla ◽  
Mark P. Waller ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Molecular Recognition ◽  
Rheological Properties ◽  
Low Molecular Weight ◽  
Ph Responsive ◽  
Ph Response ◽  
Peptide Hydrogel

The preparation and characterization of a tripeptide based hydrogel, which possesses characteristic rheological properties, is pH responsive and can be functionalized at its thiol function is reported.

scholarly journals pH-Responsive Rheological Properties and Microstructure Transition in Mixture of Anionic Gemini/Cationic Monomeric Surfactants

Molecules ◽  
2021 ◽  
Vol 26 (16) ◽  
pp. 5013
Author(s):  
Maozhang Tian ◽  
Xi Chen ◽  
Xinyuan Zou ◽  
Yuchen Qian ◽  
Zhang Liu ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Gemini Surfactant ◽  
Total Concentration ◽  
Mixed System ◽  
Wormlike Micelles ◽  
Spontaneous Curvature ◽  
Ph Responsive ◽  
Zero Shear Viscosity ◽  
Wormlike Micelle ◽  
Viscosity Enhancement

Surfactant aggregates have long been considered as a tool to improve drug delivery and have been widely used in medical products. The pH-responsive aggregation behavior in anionic gemini surfactant 1,3-bis(N-dodecyl-N-propanesulfonate sodium)-propane (C12C3C12(SO3)2) and its mixture with a cationic monomeric surfactant cetyltrimethylammonium bromide (CTAB) have been investigated. The spherical-to-wormlike micelle transition was successfully realized in C12C3C12(SO3)2 through decreasing the pH, while the rheological properties were perfectly enhanced for the formation of wormlike micelles. Especially at 140 mM and pH 6.7, the mixture showed high viscoelasticity, and the maximum of the zero-shear viscosity reached 1530 Pa·s. Acting as a sulfobetaine zwitterionic gemini surfactant, the electrostatic attraction, the hydrogen bond and the short spacer of C12C3C12(SO3)2 molecules were all responsible for the significant micellar growth. Upon adding CTAB, the similar transition could also be realized at a low pH, and the further transformation to branched micelles occurred by adjusting the total concentration. Although the mixtures did not approach the viscosity maximum appearing in the C12C3C12(SO3)2 solution, CTAB addition is more favorable for viscosity enhancement in the wormlike-micelle region. The weakened charges of the headgroups in a catanionic mixed system minimizes the micellar spontaneous curvature and enhances the intermolecular hydrogen-bonding interaction between C12C3C12(SO3)2, facilitating the formation of a viscous solution, which would greatly induce entanglement and even the fusion of wormlike micelles, thus resulting in branched microstructures and a decline of viscosity.

Using the alveograph in developing requirements for the quality of flour for wafer sheet production

2020 ◽  
Vol 29 (12) ◽  
pp. 52-58
Author(s):  
E.P. Meleshkina ◽  
◽  
S.N. Kolomiets ◽  
A.S. Cheskidova ◽  
◽  
...  
Keyword(s):  
Rheological Properties ◽  
Quality Indicators ◽  
Wheat Flour ◽  
Mathematical Statistics ◽  
Intended Purpose ◽  
The Future ◽  
Relationship Of ◽  
The Relationship

Objectively and reliably determined indicators of rheological properties of the dough were identified using the alveograph device to create a system of classifications of wheat and flour from it for the intended purpose in the future. The analysis of the relationship of standardized quality indicators, as well as newly developed indicators for identifying them, differentiating the quality of wheat flour for the intended purpose, i.e. for finished products. To do this, we use mathematical statistics methods.

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