Elastic strain-hardening and shear-thickening exhibited by thermoreversible physical hydrogels based on poly(alkylene oxide)-grafted hyaluronic acid or carboxymethylcellulose

2020 ◽  
Vol 22 (26) ◽  
pp. 14579-14590
Author(s):  
Markus Andersson Trojer ◽  
Mats Andersson ◽  
Johan Bergenholtz ◽  
Paul Gatenholm
Keyword(s):  
Hyaluronic Acid ◽  
Network Theory ◽  
Elastic Strain ◽  
Shear Thickening ◽  
Alternative Interpretation ◽  
Temperature Dependent ◽  
Gel Structure ◽  
Viscoelastic Parameters ◽  
Alkylene Oxide ◽  
Transient Network

An alternative interpretation of the transient network theory is necessary to explain the evolution of the viscoelastic parameters during the temperature-dependent formation into a solid gel structure.

Nonaffine Transient Network Theory of Associating Polymer Solutions

2006 ◽  
Vol 39 (17) ◽  
pp. 5913-5920 ◽  
Author(s):  
Fumihiko Tanaka ◽  
Tsuyoshi Koga
Keyword(s):  
Network Theory ◽  
Polymer Solutions ◽  
Transient Network ◽  
Associating Polymer

The Role of Temperature in the Entanglement Kinetics of a Polymer Melt

1995 ◽  
Vol 62 (3) ◽  
pp. 794-801 ◽  
Author(s):  
R. S. Jeyaseelan ◽  
A. J. Giacomin
Keyword(s):  
Network Theory ◽  
Rate Constants ◽  
Polymer Melt ◽  
Large Amplitude Oscillatory Shear ◽  
Kinetic Rate ◽  
Kinetic Rate Constants ◽  
Different Temperatures ◽  
Transient Network ◽  
Kinetics Of

Large-amplitude oscillatory shear (LAOS) experiments were conducted at different temperatures on a molten low-density polyethylene standard, designated IUPAC LDPE X. Jeyaseelan et al. (1993) have successfully employed a simplification of transient network theory to describe the LAOS behavior of this polymer melt, at 150°C. The transient network is described by two kinetic rate constants, one for the formation of entanglements due to Brownian motion (k1), and another for the destruction of entanglements (k2) due to the imposed deformation. Upon comparison of the predictions of this transient network theory with the measured LAOS behavior of this polymer, we find that the kinetic rate constants k1 and k2 are invariant in the range of temperatures examined (150 to 190°C). The temperature dependence of departures from linear viscoelasticity is fully accounted for in the equilibrium entanglement kinetics.

scholarly journals Temperature-dependent formulation of a hydrogel based on Hyaluronic acid-polydimethylsiloxane for biomedical applications

Heliyon ◽  
2020 ◽  
Vol 6 (3) ◽  
pp. e03494 ◽  
Author(s):  
Maryam Khaleghi ◽  
Ebrahim Ahmadi ◽  
Mahvash Khodabandeh Shahraki ◽  
Farhang Aliakbari ◽  
Dina Morshedi
Keyword(s):  
Hyaluronic Acid ◽  
Biomedical Applications ◽  
Temperature Dependent
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