Samitsu Sadaki

J-GLOBAL         Last updated: Dec 23, 2018 at 14:10
Samitsu Sadaki
National Institute for Materials Science

Published Papers

Sadaki Samitsu, Hideki T. Miyazaki, Hiroyo Segawa
Data in Brief   20 1099-1104   Oct 2018   [Refereed]
This paper reports coloration of poly(vinyl chloride) (PVC) in styrene liquid, which is called Christiansen effect. Scattering spectra of the Christiansen color for PVC particles were measured by varying scattering angles. Further discussions abou...
Nur Hashimah Alias, Juhana Jaafar, Sadaki Samitsu, Norhaniza Yusof, Mohd Hafiz Dzarfan Othman, Mukhlis A Rahman, Ahmad Fauzi Ismail, Farhana Aziz, Wan Norharyati Wan Salleh, Nur Hidayati Othman
Chemosphere   204 79-86   Aug 2018   [Refereed]
Separation and purification of oilfield produced water (OPW) is a major environmental challenge due to the co production of the OPW during petroleum exploration and production operations. Effective capture of oil contaminant and its in-situ photod...
Sadaki Samitsu, Hideki T. Miyazaki, Hiroyo Segawa
Polymer   147 237-246   Jul 2018   [Refereed]
Porous poly(vinyl chloride) (PVC) particles immersed in organic liquids exhibited bright structural colors when the refractive indices (RIs) of the liquids were close to the RI of PVC. The particles can separate white light into complementary tran...
佐光 貞樹
工業材料   66(3) 16-20   Mar 2018
Sadaki Samitsu
Macromolecules   51(1) 151-160   Dec 2017   [Refereed]
We report thermally-stable, mechanically-robust mesoporous monoliths made of commercially-available poly(ether sulfone) (PES). A PES solution dissolved in N,N-dimethylformamide spontaneously formed a physical gel upon cooling to moderate temperatu...

Books etc

Fabrication of mesoporous polymers using nanocrystallization phase separation method
佐光 貞樹
PEDOT nanofiber
下村 武史, 佐光 貞樹, 伊藤 耕三
分子コーミング法を用いて作製したPEDOT / PSSナノファイバー1本の導電率測定に取り組んだ。PEDOT/PSS水溶液の入ったシリンジを制御し、微小電極端子にかかるように電極基板上に水滴を滴下した後、ゆっくり吸い上げることで、電極上にPEDOT/PSSナノファイバーを作製した。AFM技術を適用することで、ナノファイバー1本の導電性を評価することができる。微小電極端子間にかかる3本のPEDOT/PSSナノファイバーをAFMの探針を押し当てて順番に1本ずつ切断し、それぞれのPEDOT/PS...

Conference Activities & Talks

Phase separation-based fabrication methods of nanoporous commodity polymers and their applications
佐光 貞樹
高分子同友会勉強会   26 Sep 2018   
Homogeneously Dispersed Polyrotaxane in Epoxy Adhesive and Its Improvement in the Fracture Toughness
プルクサワン シラウィット, 佐光 貞樹, 内藤 昌信
Tsukuba Global Science Week 2018   20 Sep 2018   
Epoxy adhesives are one of the indispensable materials for construction of airplanes and automobiles due to their strong adhesive properties, high thermal and chemical stability. However, their lower fracture toughness often involves brittle fract...
Transmitting and scattering colors of porous particles of poly(vinyl chloride) based on Christiansen effect
佐光 貞樹, 宮崎 英樹, 瀬川 浩代
第67回高分子討論会   12 Sep 2018   
Structural colorization of poly(vinyl chloride) powder
佐光 貞樹
近畿化学協会 2018年度第1回 重合工学部会   15 Jun 2018   
Solvent-induced crystallization of polymers
佐光 貞樹
つくばソフトマター2018   4 Jun 2018