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1

Antagonism between hindered amine light stabilizers and sulfur-containing compounds

Kazumi Kikkawa, Yutaka Nakahara, Yasukazu Ohkatsu

Journal:

Polymer Degradation and Stability

Year:

1987

Language:

english

File:

PDF, 377 KB

english, 1987

2

Active species in hydroperoxide decomposition by hindered amine light stabilizers and its reactivity with phenol

Hiroshi Yamashita, Katsunori Banno, Yasukazu Ohkatsu

Journal:

Journal of Applied Polymer Science

Year:

2006

Language:

english

File:

PDF, 336 KB

english, 2006

3

Asymmetric copolymerization of styrene with oxygen

Masahiro Nukui, Kenji Yoshino, Yasukazu Ohkatsu, Teiji Tsuruta

Journal:

Macromolecular Chemistry and Physics

Year:

1979

Language:

english

File:

PDF, 160 KB

english, 1979

4

Reactivity of growing radical in the copolymerization of styrenes with oxygen in the presence of cobalt complex

Masahiro Nukui, Yasukazu Ohkatsu, Teiji Tsuruta

Journal:

Macromolecular Chemistry and Physics

Year:

1981

Language:

english

File:

PDF, 301 KB

english, 1981

5

Autoxidation reactions of polystyrene derivatives

Yasukazu Ohkatsu, Tetsuo Tanaka, Teiji Tsuruta

Journal:

Macromolecular Chemistry and Physics

Year:

1982

Language:

english

File:

PDF, 298 KB

english, 1982

6

Asymmetric copolymerization of styrene homologues with oxygen

Masahiro Nukui, Yasukazu Ohkatsu, Teiji Tsuruta

Journal:

Macromolecular Chemistry and Physics

Year:

1982

Language:

english

File:

PDF, 335 KB

english, 1982

7

Preparation of metal-free polyphthalocyanine thin films by an evaporation-polymerization method

Katsuya Abe, Yasukazu Ohkatsu, Toru Kusano

Journal:

Macromolecular Chemistry and Physics

Year:

1988

Language:

english

File:

PDF, 393 KB

english, 1988

8

Synthesis and polymerization of a macromonomer derived from phosphatidylcholine

Yasukazu Ohkatsu, Masao Yokota, Toru Kusano

Journal:

Macromolecular Chemistry and Physics

Year:

1988

Language:

english

File:

PDF, 370 KB

english, 1988

9

Characteristics of rectifying devices with thin films of polyphthalocyanine

Katsuya Abe, Hiroshi Saito, Takeshi Kimura, Yasukazu Ohkatsu, Toru Kusano

Journal:

Macromolecular Chemistry and Physics

Year:

1989

Language:

english

File:

PDF, 404 KB

english, 1989

10

New liquid-crystalline polycarbonates from diols containing a biphenyl ring sequence as central core

Moriyuki Sato, Kazuyasu Nakatsuchi, Yasukazu Ohkatsu

Journal:

Macromolecular Rapid Communications

Year:

1986

Language:

english

File:

PDF, 213 KB

english, 1986

11

Oxygenation of 3-methylindole catalyzed by cobalt(II) phthalocyanine attached to polyorganosiloxane Part 2. Mechanism for addition of oxygen to 3-methylindole

Nobukatsu Nemoto, Tetsuya Asakura, Katsuyuki Tobita, Yukihiko Ueno, Koji Ikeda, Nobuo Takamiya, Yasukazu Ohkatsu

Journal:

Journal of Molecular Catalysis

Year:

1991

Language:

english

File:

PDF, 420 KB

english, 1991

12

Antioxidant and photo-antioxidant abilities of catechins

Yoshiyuki Dobashi, Takashi Hirano, Morio Hirano, Yasukazu Ohkatsu

Journal:

Journal of Photochemistry and Photobiology A: Chemistry

Year:

2008

Language:

english

File:

PDF, 724 KB

english, 2008

13

Photo-antioxidant abilities of 2-hydroxybenzoyl compounds

Yoshiyuki Dobashi, Jun-ichi Kondou, Yasukazu Ohkatsu

Journal:

Polymer Degradation and Stability

Year:

2005

Language:

english

File:

PDF, 208 KB

english, 2005

14

Interaction of ultraviolet absorbers

Yoshiyuki Dobashi, Tomoe Yuyama, Yasukazu Ohkatsu

Journal:

Polymer Degradation and Stability

Year:

2007

Language:

english

File:

PDF, 509 KB

english, 2007

15

Phenolic antioxidants: effect of o-benzyl substituents

Takanori Matsuura, Yasukazu Ohkatsu

Journal:

Polymer Degradation and Stability

Year:

2000

Language:

english

File:

PDF, 201 KB

english, 2000

16

Effect of para-substituents of phenolic antioxidants

Tetsuto Kajiyama, Yasukazu Ohkatsu

Journal:

Polymer Degradation and Stability

Year:

2001

Language:

english

File:

PDF, 257 KB

english, 2001

17

Antioxidant activities of tocopherols

Yasukazu Ohkatsu, Tetsuto Kajiyama, Yuji Arai

Journal:

Polymer Degradation and Stability

Year:

2001

Language:

english

File:

PDF, 367 KB

english, 2001

18

Effect of meta-substituents of phenolic antioxidants—proposal of secondary substituent effect

Tetsuto Kajiyama, Yasukazu Ohkatsu

Journal:

Polymer Degradation and Stability

Year:

2002

Language:

english

File:

PDF, 212 KB

english, 2002

19

A new antagonism between hindered amine light stabilizers and acidic compounds including phenolic antioxidant

Hiroshi Yamashita, Yasukazu Ohkatsu

Journal:

Polymer Degradation and Stability

Year:

2003

Language:

english

File:

PDF, 257 KB

english, 2003

20

A phenolic antioxidant trapping both alkyl and peroxy radicals

Yasukazu Ohkatsu, Takanori Matsuura, Mitsugu Yamato

Journal:

Polymer Degradation and Stability

Year:

2003

Language:

english

File:

PDF, 197 KB

english, 2003

21

Phenolic antioxidants-effect of ortho-substituents

Yasukazu Ohkatsu, Takeshi Nishiyama

Journal:

Polymer Degradation and Stability

Year:

2000

Language:

english

File:

PDF, 172 KB

english, 2000

22

Consideration on the effect of ortho-substituents of phenols by semiempirical molecular orbital method MOPAC

Yasukazu Ohkatsu, Shin-ichi Ishikawa, Etsuo Tobita

Journal:

Polymer Degradation and Stability

Year:

2000

Language:

english

File:

PDF, 177 KB

english, 2000

23

Synthesis and liquid crystalline properties of thermotropic homo- and copolycarbonates

Moriyuki Sato, Katsuya Kurosawa, Kazuyasu Nakatsuchi, Yasukazu Ohkatsu

Journal:

Journal of Polymer Science Part A: Polymer Chemistry

Year:

1988

Language:

english

File:

PDF, 576 KB

english, 1988

24

Dependence of ultraviolet absorbers' performance on ultraviolet wavelength

Yoshiyuki Dobashi, Yasukazu Ohkatsu

Journal:

Polymer Degradation and Stability

Year:

2008

Language:

english

File:

PDF, 896 KB

english, 2008

25

Study on the Modes of Thermal Decomposition of Several Azo-Type Initiators

Yoshino, Kenji, Ohkatsu, Yasukazu, Tsuruta, Teiji

Journal:

Polymer Journal

Year:

1977

File:

PDF, 650 KB

1977

26

Kinetic Evaluation of Reactivity of Phenolic Derivatives as Antioxidants for Polypropylene

Ohkatsu, Yasukazu, Haruna, Tohru, Osa, Tetsuo

Journal:

Journal of Macromolecular Science Part A - Chemistry

Year:

1977

Language:

english

File:

PDF, 451 KB

english, 1977

27

Catalytic Activity of Metal Polyphthalocyanines in Autoxidation Reactions

Hara, Takao, Ohkatsu, Yasukazu, Osa, Tetsuo

Journal:

Bulletin of the Chemical Society of Japan

Year:

1975

File:

PDF, 847 KB

1975

28

Autoxidation Reactions of Hydrocarbons Catalyzed by Co(II) Tetra( p -tolyl)porphyrin

Ohkatsu, Yasukazu, Tsuruta, Teiji

Journal:

Bulletin of the Chemical Society of Japan

Year:

1978

File:

PDF, 602 KB

1978

29

The Liquid-phase Oxidation of Acetaldehyde with Metal Polyphthalocyanines. Solvent Effect

Ohkatsu, Yasukazu, Hara, Takao, Osa, Tetsuo

Journal:

Bulletin of the Chemical Society of Japan

Year:

1977

File:

PDF, 733 KB

1977

30

A Study of the Interactions between Free Radicals and Cobalt Complexes

Yoshino, Kenji, Ohkatsu, Yasukazu, Tsuruta, Teiji

Journal:

Bulletin of the Chemical Society of Japan

Year:

1979

File:

PDF, 649 KB

1979

31

Photochemical Activation of Zinc-Carbon and Zinc-Sulfur Bonds in Zinc Porphyrins

Nukui, Masahiro, Inoue, Shohei, Ohkatsu, Yasukazu

Journal:

Bulletin of the Chemical Society of Japan

Year:

1983

File:

PDF, 524 KB

1983

32

Syntheses and Catalytic Actions of Self-Micelle-Forming Hydrolase Models

Kawaguchi, Kazuo, Ohkatsu, Yasukazu, Kusano, Tom

Journal:

Bulletin of the Chemical Society of Japan

Year:

1990

File:

PDF, 785 KB

1990

33

THE OXIDATION OF CUMENE CATALYZED BY METAL POLYPHTHALOCYANINES

Hara, Takao, Ohkatsu, Yasukazu, Osa, Tetsuo

Journal:

Chemistry Letters

Year:

1973

Language:

english

File:

PDF, 5.24 MB

english, 1973

34

ABSORPTION OF NITROGEN OXIDES WITH AMMONIUM SALTS

Osa, Tetsuo, Fujieda, Shigeaki, Abe, Yasuhiko, Ohkatsu, Yasukazu

Journal:

Chemistry Letters

Year:

1977

Language:

english

File:

PDF, 5.85 MB

english, 1977

35

The Liquid Phase Oxidation of Acrolein. V. Effects of Water on the Oxidation of Acrolein

Ohkatsu, Yasukazu, Osa, Tetsuo, Misono, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1967

Language:

english

File:

PDF, 10.92 MB

english, 1967

36

The Liquid Phase Oxidation of Acrolein. IV. A Postulated Configuration of the Divalent Cobalt Acetylacetonate Catalysts in the Initiation Reaction

Ohkatsu, Yasukazu, Osa, Tetsuo, Misono, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1967

Language:

english

File:

PDF, 11.25 MB

english, 1967

37

The Liquid Phase Oxidation of Acrolein. II. Solvent Effects in the Liquid Phase Oxidation of Acrolein and the Decomposition of Peracrylic Acid

Ohkatsu, Yasukazu, Takeda, Makoto, Hara, Takao, Osa, Tetsuo, Misono, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1967

Language:

english

File:

PDF, 14.11 MB

english, 1967

38

Kinetics of the Oxidation of Acrolein Initiated by Di- t -Butyl Diperoxyoxalate

Hara, Takao, Ohkatsu, Yasukazu, Osa, Tetsuo

Journal:

Bulletin of the Chemical Society of Japan

Year:

1974

File:

PDF, 635 KB

1974

39

Reactivity of Electrogenerated Superoxide Ion. I. Autoxidation of 9,10-Dihydroanthracene

Tezuka, Meguru, Ohkatsu, Yasukazu, Osa, Tetsuo

Journal:

Bulletin of the Chemical Society of Japan

Year:

1975

File:

PDF, 629 KB

1975

40

Reduction and Oxidation Potentials of Metal-free and Cobalt Tetra( p -substituted phenyl)porphyrins

Tezuka, Meguru, Ohkatsu, Yasukazu, Osa, Tetsuo

Journal:

Bulletin of the Chemical Society of Japan

Year:

1976

File:

PDF, 317 KB

1976

41

The Hydrogen-transfer Reaction of a Diazo Compound Catalyzed by a Cobalt Complex

Yoshino, Kenji, Ohkatsu, Yasukazu, Tsuruta, Teiji

Journal:

Bulletin of the Chemical Society of Japan

Year:

1979

File:

PDF, 713 KB

1979

42

THE OXIDATION OF ACROLEIN CATALYZED BY A METAL POLYPHTHALOCYANINE

Hara, Takao, Ohkatsu, Yasukazu, Osa, Tetsuo

Journal:

Chemistry Letters

Year:

1973

Language:

english

File:

PDF, 4.33 MB

english, 1973

43

BASE-CATALYZED AUTOXIDATION OF 9,10-DIHYDROANTHRACENE WITH ELECTRO-GENERATED SUPEROXIDE ION

Osa, Tetsuo, Ohkatsu, Yasukazu, Tezuka, Meguru

Journal:

Chemistry Letters

Year:

1973

Language:

english

File:

PDF, 5.26 MB

english, 1973

44

ASYMMETRIC OXIDATION REACTION OF THERMALLY DECOMPOSED PRODUCTS OF meso -1,1′-DIPHENYL-1,1′-AZODIETHANE

Yoshino, Kenji, Ohkatsu, Yasukazu, Tsuruta, Teiji

Journal:

Chemistry Letters

Year:

1978

Language:

english

File:

PDF, 5.15 MB

english, 1978

45

The Liquid-phase Oxidation of Aldehydes with Fe,Cu-Poly-phthalocyanine and Cobalt Tetra- p -tolylporphyrin

Ohkatsu, Yasukazu, Sekiguchi, Osamu, Osa, Tetsuo

Journal:

Bulletin of the Chemical Society of Japan

Year:

1977

File:

PDF, 755 KB

1977

46

PHOTOCHEMICAL ACTIVATION OF METAL–CARBON BOND IN ZINC AND ALUMINIUM PORPHYRINS. SUBSTITUTION REACTION WITH HINDERED PHENOLS

Murayama, Hideki, Inoue, Shohei, Ohkatsu, Yasukazu

Journal:

Chemistry Letters

Year:

1983

Language:

english

File:

PDF, 5.83 MB

english, 1983

47

Direct Electrical Communication between the Redox Center of Glucose Oxidase and Electrode via Conductive Polypyrrole Matrix

Yamada, Katsumi, Koizumi, Hiroko, Ikeda, Koji, Ohkatsu, Yasukazu

Journal:

Chemistry Letters

Year:

1997

File:

PDF, 336 KB

1997

48

The Liquid Phase Oxidation of Acrolein. III. Decompositions of Peracrylic Acid by Catalysts and with Acrolein

Ohkatsu, Yasukazu, Hara, Takao, Osa, Tetsuo, Misono, Akira

Journal:

Bulletin of the Chemical Society of Japan

Year:

1967

Language:

english

File:

PDF, 12.17 MB

english, 1967

49

Study on Zinc O , O -Diisobutyl Dithiophosphate as Antioxidant

Ohkatsu, Yasukazu, Kikkawa, Kazumi, Osa, Tetsuo

Journal:

Bulletin of the Chemical Society of Japan

Year:

1978

File:

PDF, 596 KB

1978

50

Oxidation of Acetaldehyde Catalyzed by Cobalt(II) Tetraphenylporphyrin

Tezuka, Meguru, Sekiguchi, Osamu, Ohkatsu, Yasukazu, Osa, Tetuo

Journal:

Bulletin of the Chemical Society of Japan

Year:

1976

File:

PDF, 705 KB

1976