37 Result(s)

Article

Humidity responsiveness of a poly(N-isopropylacrylamide) gel with a PEG/water mixed solvent

This manuscript presents the humidity responsiveness of a poly(N-isopropylacrylamide) (PNIPAAm) gel, which was capable of exhibiting volume changes. The strategy for inducing volume changes in the gel capitalized...

Ryotaro Makita, Aya M. Akimoto, Takafumi Enomoto, Taihei Nishimoto… in Polymer Journal (2024)

Article

Structural changes of polystyrene particles in subcritical and supercritical water revealed by in situ small-angle neutron scattering

Marine ecosystem degradation due to microplastic pollution is a significant environmental problem, as acknowledged by Sustainable Development Goal 14. Decomposition of plastics using near critical or supercrit...

Motoki Shibata, Yohei Nakanishi, Jun Abe, Hiroshi Arima-Osonoi… in Polymer Journal (2023)

Article

Antimicrobial surface processing of polymethyl methacrylate denture base resin using a novel silica-based coating technology

This study investigated the surface characteristics of denture base resin coatings prepared using a novel silica-based film containing hinokitiol and assessed the effect of this coating on Candida albicans adhesi...

Chiaki Tsutsumi-Arai, Kazuhiro Akutsu-Suyama, Yoko Iwamiya… in Clinical Oral Investigations (2023)

Article

Evaluation of the rheological and rupture properties of gelatin-based hydrogels blended with polymers to determine their drug diffusion behavior

In this study, the drug diffusion behavior and kinetics of gelatin hydrogels that were prepared with polymers were evaluated in terms of their rheological and rupture properties. The rheological and rupture pr...

Satoshi Nogami, Kazunori Kadota, Hiromasa Uchiyama, Hiroshi Arima-Osonoi… in Polymer Journal (2022)

Article

Temperature-dependent relationship between the structure and mechanical strength of volatile organic compound-free latex films prepared from poly(butyl acrylate-co-methyl methacrylate) microspheres

Latex films that are formed by evaporating dispersions in the absence of volatile organic compounds (VOCs) typically suffer from poor mechanical strength compared to solution-cast latex films. In our previous ...

Seina Hiroshige, Haruka Minato, Yuichiro Nishizawa, Yuma Sasaki… in Polymer Journal (2021)

Article

Examination of cross-calibration and concentration linearity with quantitative gallium-67 single-photon emission computed tomography: phantom experiment

We evaluated whether scattered radiation should be considered for cross-calibration and concentration linearity with quantitative gallium-67 (⁶⁷Ga) single-photon emission computed tomography (SPECT). The scanned ...

Yoshiyuki Takahashi, Tatsuya Tsuchitani… in Radiological Physics and Technology (2020)

Article

Mechanism of heat-induced gelation for ovalbumin under acidic conditions and the effect of peptides

The mechanism of the heat-induced gelation of ovalbumin (OVA) under acidic conditions and the effect of amphiphilic peptide additives on gelation were investigated using dynamic light scattering (DLS) and smal...

Takashi Hiroi, Kazu Hirosawa, Yuya Okazumi, Sai Venkatesh **ali… in Polymer Journal (2020)

Article

Chiral crystal-like droplets displaying unidirectional rotational sliding

The self-assembly of organic molecules into supramolecular materials with structural ordering beyond the nanometre scale is challenging. Here, we report the spontaneous self-assembly of a chiral discotic triph...

Takashi Kajitani, Kyuri Motokawa, Atsuko Kosaka, Yoshiaki Shoji… in Nature Materials (2019)

Article

Network structure evolution of a hexamethylenetetramine-cured phenolic resin

The network structure evolution of a hexamethylenetetramine (HMTA)-cured novolac-type phenolic resin over a curing temperature range of 135–155 °C was investigated using ¹H-pulse nuclear magnetic resonance spectr...

Atsushi Izumi, Yasuyuki Shudo, Mitsuhiro Shibayama in Polymer Journal (2019)

Article

Precision polymer network science with tetra-PEG gels—a decade history and future

Tetra-PEG gels, near-ideal polymer networks prepared by cross-end-coupling of A and B tetra-functional poly(ethylene glycol) (PEG) prepolymers having complementary end groups, were first fabricated in 2008. Co...

Mitsuhiro Shibayama, **ang Li, Takamasa Sakai in Colloid and Polymer Science (2019)

Article

Fast-forming hydrogel with ultralow polymeric content as an artificial vitreous body

Degradation-induced swelling in implanted hydrogels can cause severe adverse reactions in surrounding tissues. Here, we report a new class of hydrogel with extremely low swelling pressure, and demonstrate its ...

Kaori Hayashi, Fumiki Okamoto, Su** Hoshi… in Nature Biomedical Engineering (2017)

Reference Work Entry In depth

Structures in CL/P Nanocomposites

Mitsuhiro Shibayama in Encyclopedia of Polymeric Nanomaterials (2015)

Article

Small-Angle Neutron Scattering Study on Aggregation of 1-Alkyl-3-methylimidazolium Based Ionic Liquids in Aqueous Solution

Aggregation structures of 1-alkyl-3-methylimidazolium based ionic liquids (ILs) in aqueous solution were investigated by small-angle neutron scattering (SANS) from the viewpoint of alkyl chain length, n, and anio...

Takumi Kusano, Kenta Fujii, Masaaki Tabata… in Journal of Solution Chemistry (2013)

Article

Specific Solvation of Benzyl Methacrylate in 1-Ethyl-3-methylimidazolium Bis(trifluoromethanesulfonyl)amide Ionic Liquid

It has been established that poly(benzyl methacrylate) in a room-temperature ionic liquid, 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)amide ([C₂mIm⁺][TFSA^–]), exhibits lower critical solution temper...

Masaru Matsugami, Kenta Fujii, Takeshi Ueki, Yuzo Kitazawa… in Analytical Sciences (2013)