Takehiro Matsunaga

ORCID: 0000-0002-2416-3635
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About
Contact & Profiles
Research Areas
  • Thermal and Kinetic Analysis
  • Energetic Materials and Combustion
  • Combustion and Detonation Processes
  • X-ray Diffraction in Crystallography
  • Crystallization and Solubility Studies
  • Inorganic and Organometallic Chemistry
  • Risk and Safety Analysis
  • Fuel Cells and Related Materials
  • Immunotherapy and Immune Responses
  • Radioactive element chemistry and processing
  • Flame retardant materials and properties
  • History and advancements in chemistry
  • Chemical Safety and Risk Management
  • Crystallography and molecular interactions
  • Analytical Chemistry and Chromatography
  • Macrophage Migration Inhibitory Factor
  • Nuclear and radioactivity studies
  • Chemical Synthesis and Characterization
  • Analytical Chemistry and Sensors
  • Various Chemistry Research Topics
  • Immune Cell Function and Interaction
  • Chemical Thermodynamics and Molecular Structure
  • Synthesis of Tetrazole Derivatives
  • Epoxy Resin Curing Processes
  • Virus-based gene therapy research

National Institute of Advanced Industrial Science and Technology
2010-2022

Toyota Motor Corporation (Japan)
2008

University of Fribourg
2008

Hokkaido University
1987-1993

Nitto Chemical Industry (Japan)
1991

National Chemical Laboratory
1991

The University of Tokyo
1987

The novel oxidant of sodium hypochlorite pentahydrate (NaOCl·5H2O) crystals is now available for industrial and laboratory use. It superior to conventional aqueous solutions (aq. NaOCl). crystalline material 44% NaOCl contains minimal amounts hydroxide chloride, the solution, which prepared from NaOCl·5H2O water, has a pH 11–12. Examples selective organic synthesis using involve oxidations primary secondary alcohols, sulfoxide sulfone, oxidative cleavage disulfide sulfonyl chloride bromide,...

10.1021/acs.oprd.7b00288 article EN publisher-specific-oa Organic Process Research & Development 2017-10-23

Abstract A novel procedure for the preparation of nanosized nitrocellulose (NC) was developed. Cellulose nanofiber (CNF) water suspension obtained by disk‐milling cotton powder. CNF first pretreated using sulfonic acid to enhance esterification process HNO 3 and H 2 SO 4 . The generated (NCNF) with a nitrogen content 9.0 %–13.7 %. Brunauer‐Emmett‐Teller (BET) specific surface area NCNF ten times larger than that NC, burning rate 3.5 faster NC. Differential scanning calorimetry (DSC)...

10.1002/prep.202000240 article EN Propellants Explosives Pyrotechnics 2021-03-09

The genetic restriction in the T-cell-macrophage-like cell interaction helper induction was investigated with allophenic and irradiation chimeras of various types. Using T cells from P leads to F1 chimeras, there a cooperation parental haplotype accessory cells, unless chimeric mice were repopulated macrophages opposite before priming. primed or unprimed only cooperated recipient type cells. These observations led hypothesis that are two stages genesis immunocompetence one dependent on...

10.1084/jem.149.3.686 article EN The Journal of Experimental Medicine 1979-03-01

Anhydrous 5-aminotetrazole (5-amino-1H-tetrazole, 5-ATZ) is an energetic material that produces a large amount of nitrogen gas by thermal decomposition and often used as generator agent. Although it widely air bag inflator, its crystal structure has not been determined yet. Thus, we performed powder X-ray diffraction experiment, Rietveld analysis, the density functional theory calculation to investigate be orthorhombic P212121 with 1H-form molecule. We also investigated high-pressure...

10.1039/c0ce00278j article EN CrystEngComm 2010-09-27

10.1107/s0108270198009718 article HU Acta Crystallographica Section C Crystal Structure Communications 1999-01-15

Differential scanning calorimetry (DSC) provides easy screening for thermal hazard evaluation. Here, we investigate the difference between using glass and stainless-steel vessels on DSC measurement of exothermic decomposition energy (QDSC) 41 chemical substances (containing nitro, halogen, peroxide, sulfur groups, hydrazine bonds). Two borosilicate (capillary ampule) one vessel were used. All QDSC values obtained investigated with reference to permissible fluctuation range specified by ASTM...

10.4236/ajac.2017.81002 article EN American Journal of Analytical Chemistry 2017-01-01

The thermal decomposition behavior of the tertiary pyridine resin, which was used during nuclide-separation process in Advanced Optimization by Recycling Instructive Elements (Advanced ORIENT) cycle, investigated its nitrate form (TPR-NO3), order to determine ways preventing runaway reaction. A analysis TPR-NO3 and an gases produced were employed for purpose. In addition, kinetics parameters evaluated via a kinetic empirical data. Finally, validity reaction model assessed comparing predicted...

10.1016/j.egypro.2014.11.861 article EN Energy Procedia 2015-05-01

The molecular structure determination of the title compound, CH2N4O, by X-ray crystallography reveals that it is 1H-tetrazol-5(4H)-one, not 5-hydroxytetrazole which had been generally accepted; 1H-tetrazol-5(4H)-one keto form with C2v symmetry. Ab initio calculations at MP2/6–31 G* level also indicate most stable tautomer.

10.1107/s0108270198002108 article EN Acta Crystallographica Section C Crystal Structure Communications 1998-08-15

In the crystal structure of title compound, [Fe(H(2)O)(6)](C(6)H(2)N(3)O(7))(2).2H(2)O, centrosymmetric cationic iron complexes and picrate anions form separate stacks extending along b axis. No species ligate to metal cation. Picrate ions are linked one another in stack via short intermolecular C.C contacts 3.083 (4) 3.055 A. Variable-temperature X-ray diffraction measurements performed between room temperature 93 K showed a linear decrease lattice parameters, suggesting that there is no...

10.1107/s0108270103013301 article EN Acta Crystallographica Section C Crystal Structure Communications 2003-07-22

In the crystal structure of title compound, [Zn(H2O)6](C(6)H(2)N(3)O(7))2.3H2O, zinc cation complexes and picrate anions are stacked separately, extending along b axis. No species ligate to metal cation. This lack coordination is atypical among salts. We speculate that size metal-aqua complex as related intermolecular distance in pi stack can be a measure formation such separated stacks structures divalent with anions. Picrate ions linked each other short C...C contacts 3.223 (6) 3.194 A stack.

10.1107/s0108270107035111 article EN Acta Crystallographica Section C Crystal Structure Communications 2007-08-24

A monoclonal antibody (mAb) specific to triacetone triperoxide (TATP) was produced from the stable hybridoma cell line 15B-1E, generated by fusion of myeloma cells with spleen isolated a mouse immunized conjugate 3,3′-(9,12-dimethyl-7,8,10,11,13,14-hexaoxaspiro[5.8]tetradecane-9,12-diyl)dipropanoic acid (DHTDA) carrier protein, keyhole limpet hemocyanin. The mAb, bound DHTDA dissociation constant (KD) 4.7 × 10−7 M. binding mAb TATP examined competitive indirect enzyme-linked immunosorbent...

10.1246/bcsj.20120253 article EN Bulletin of the Chemical Society of Japan 2013-01-30
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