54 citations · 204 across the 9 of their papers we have counts for
9 papers
Phantom-Chain Simulations for the Effect of Node Functionality on the Fracture of Star-Polymer Networks
Yuichi Masubuchi, Yuya Doi, Takato Ishida +5
The influence of node functionality (f) on the fracture of polymer networks remains unclear. While many studies have focused on multi-functional nodes with f>4, recent research sug…
Universality of Osmotic Equation of State in Star Polymer Solutions
Takashi Yasuda, Masanobu Ino, Takamasa Sakai +1
We experimentally measure the osmotic pressures of linear polymers and three-, four-, and eight-arm star polymers in a good solvent via membrane osmometry. These results reveal tha…
Semidilute Principle for Gels
Naoyuki Sakumichi, Takashi Yasuda, Takamasa Sakai
Polymer gels such as jellies and soft contact lenses are soft solids consisting of three-dimensional polymer networks swollen with a large amount of solvent. For approximately 80 y…
Percolation induced gel-gel phase separation in a dilute polymer network
Shohei Ishikawa, Yasuhide Iwanaga, Takashi Uneyama +8
Cosmic large-scale structures, animal flocks, and living tissues are non-equilibrium organized systems created by dissipative processes. Despite the uniqueness, the realization of…
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…
Damageless Tough Hydrogels with On-demand Self-reinforcement
Chang Liu, Takeshi Fujiyabu, Naoya Morimoto +5
Most tough hydrogels are reinforced by introducing sacrificial structures that can dissipate input energy. However, since the sacrificial damages cannot recover instantly, the toug…
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…
Universal equation of state describes osmotic pressure throughout gelation process
Takashi Yasuda, Naoyuki Sakumichi, Ung-il Chung +1
The equation of state of the osmotic pressure for linear-polymer solutions in good solvents is universally described by a scaling function. We experimentally measure the osmotic pr…
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…