31 citations · 83 across the 3 of their papers we have counts for
3 papers
Temperature Dependence of Polymer Network Diffusion
Takeshi Fujiyabu, Takamasa Sakai, Ryota Kudo +4
The swelling dynamics of polymer gels are characterized by the (collective) diffusion coefficient of the polymer network. Here, we measure the temperature dependence of of…
Linear elasticity of polymer gels in terms of negative energy elasticity
Naoyuki Sakumichi, Yuki Yoshikawa, Takamasa Sakai
We recently found that the energy contribution to the linear elasticity of polymer gels in the as-prepared state can be a significant negative value; the shear modulus is not propo…
Negative energy elasticity in a rubberlike gel
Yuki Yoshikawa, Naoyuki Sakumichi, Ung-il Chung +1
Rubber elasticity is the archetype of the entropic force emerging from the second law of thermodynamics; numerous experimental and theoretical studies on natural and synthetic rubb…