Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Okihiko Hirasa"'
Publikováno v:
Polymer Gels and Networks. 5:145-151
γ-ray irradiation of N-isopropylacrylamide (NIPAAm) monomer. solution resulted in the formation of the opaque poly (N-isopropylacrylamide) (PNIPAAm) gel having a microporous structure. The thermo-responsive properties of the microporous gel were the
Autor:
Kanako Sahara, Ryoichi Kishi, Hisao Ichijo, Etsuo Kokufuta, Seiji Kohno, Mika Oowada, Okihiko Hirasa
Publikováno v:
Radiation Physics and Chemistry. 46:185-190
Publikováno v:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 28:697-702
The adsorption isotherm of the nonionic surfactant Triton X-100, tryptophan and BSA on temperature-sensitive poly(vinylmethylether) gel (PVMEG) was investigated for adsorptive separation of bio-related substances. The adsorbed amount of Triton X-100
Autor:
Takashi Akehata, Ryoichi Kishi, Hideyasu Tsuchihashi, Okihiko Hirasa, Miki Kobayashi, Masafumi Mochizuki, Takahiro Kuramoto
Publikováno v:
KOBUNSHI RONBUNSHU. 52:121-124
熱応答性のよいスポンジ状のポリビニルメチルエーテル (PVME) ゲルの調製条件を, 生成するゲルの構造に及ぼす前照射の吸収線量および本照射時の試料温度の曇点よりの上昇度の影響の観
Publikováno v:
ResearcherID
Liquid-crystalline elastomer carrying cyanobiphenyl side groups was synthesized by radical copolymerization of 6-(4′-cyanobiphenyl-4-yloxy)hexyl acrylate and hexamethylene diacrylate. Liquid-crystalline elastomer was swollen in a low molecular weig
Publikováno v:
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 27:638-643
Biorilm was formed on an oxygen enrichment-type support which consisted of a poly(dimethylsiloxane) hollow fiber membrane and a fibrous support woven around the fiber. Population distribution of nitrifiers and denitrifiers in the biofilm was investig
Publikováno v:
Polymer Gels and Networks. 2:315-322
Thermo-responsive polymer gel, poly(vinyl methyl ether) porous gel, was applied to the separation of organic substances in aqueous solution. Non-ionic surfactants were thermo-reversibly separated by the change of hydrophilic/hydrophobic balance of th
Publikováno v:
Journal of Intelligent Material Systems and Structures. 4:533-537
Aqueous solution of poly(vinyl methyl ether) (PVME) shows phase transition around 38°C. PVME hydrogel cross-linked by γ-ray irradiation is also a thermally responsive hydrogel and undergoes volume change at the same temperature; it swells below and
Autor:
Okihiko Hirasa
Publikováno v:
Journal of Intelligent Material Systems and Structures. 4:538-542
In recent years, biological functions have been increasingly investigated on the molecular and/or atomic level. Synthesis and assemblies of various functional polymers have also been researched. In particular, research of stimuli-responsive polymeric
Publikováno v:
KOBUNSHI RONBUNSHU. 50:905-908
代表的な感熱性高分子の一つであるポリビニルメチルエーテル (PVME) の水溶液は, γ線を照射することにより容易に架橋しゲル化する. 架橋したゲルは, 水溶液同様に感熱性を有し, 38℃付