Sakai Wataru 坂井亙

… Alternative Names

SAKAI Wataru 坂井亙

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Researcher Number	70263176
Other IDs
Affiliation (Current)	2025: 京都工芸繊維大学, 材料化学系, 教授
Affiliation (based on the past Project Information) *help	2021 – 2023: 京都工芸繊維大学, 材料化学系, 教授 2006: 京都工芸繊維大学, 工芸科学研究科, 講師 2004 – 2005: Kyoto Institute of Technology, Dept.of Polym.Sci. & Eng., Lecturer, 繊維学部, 講師 2003: 京都工芸繊維大学, 繊維学部, 助手 1999 – 2000: 京都工芸繊維大学, 繊維学部, 助手
Review Section/Research Field	Principal Investigator Basic Section 34030:Green sustainable chemistry and environmental chemistry-related / 高分子構造・物性(含繊維) / Nanomaterials/Nanobioscience Except Principal Investigator Functional materials/Devices / Applied optics/Quantum optical engineering
Keywords	Principal Investigator ラジカル / 電子スピン共鳴（ESR） / ケミルミネッセンス（CL） / 高分子材料 / 劣化 / 自動酸化劣化 / ナイロン / ポリプロピレン / ケミルミネッセンス / 電子スピン共鳴 … More / ラジカル反応 / 自動酸化反応 / 高分子劣化 / Poly (vinyl methyl ether) / Polystyrene / Symmetry-Breaking / Linearly polarized light / Photoisomerization / Phase Separation / Polymer Alloys / 非保存系 / 保存系 / 光強度の配配 / 非一様な相分離 / ポリマーブレンド / ポリビニルメチルエチール / ポリビニルメチルエーテル / ポリスチレン / 対称性のやぶれ / 直線偏光 / 光強度の勾配 / 光異性化反応 / 相分離 / ポリマーアロイ / アゾ色素 / 超短パルス / 表面構造 / 多光子励起 / アブレーション / LIPPS / SRG / レーザー誘起周期表面構造 / 表面レリーフ格子 / フェムト秒 … More Except Principal Investigator Χ^<(2)> holography / Χ^<(2)> diffraction gratings / pico second laser / Self phase matching / Optical poling / ピコ病パルスレーザー / X^<(2)>ホログラフィー / X^<(2)>回析格子 / χ^<(2)>ホログラフィー / χ^<(2)>回折格子 / ピコ秒パルスレーザー / 自己位相整合 / 光ポーリング / Electro optics effect / Suppression of reorientation / Transverse alignment of NLO dipoles / Second Harmonic Generation / NLO Organic Polymers / Nonlinear Optics / 時空間制御 / 位相整合 / 基本波と2倍波との3次の干渉光 / 光学的非線形現象 / 屈折率分布制御 / 高分子のχ^<(2)>極性構造制御 Less

The Analysis of Thermo-Oxidative Degradation of Polymer Materials by CL-ST-ESRPrincipal Investigator
- Principal Investigator
  
  SAKAI Wataru
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Review Section
  
  Basic Section 34030:Green sustainable chemistry and environmental chemistry-related
- Research Institution
  Kyoto Institute of Technology
超短パルスレーザーを用いた多光子誘起周期構造の構築と解析Principal Investigator
- Principal Investigator
  
  坂井亙
- Project Period (FY)
  2005 – 2006
- Research Category
  
  Grant-in-Aid for Exploratory Research
- Research Field
  
  Nanomaterials/Nanobioscience
- Research Institution
  Kyoto Institute of Technology
Novel Organic Optical Devices Using Optical Poling
- Principal Investigator
  
  TSUTSUMI Naoto
- Project Period (FY)
  2003 – 2004
- Research Category
  
  Grant-in-Aid for Scientific Research (B)
- Research Field
  
  Functional materials/Devices
- Research Institution
  Kyoto Institute of Technology
Mechanism of Phase Separation of Polymar Blends Induced by a Gradient of Light IntersityPrincipal Investigator
- Principal Investigator
  
  SAKAI Wataru, MIYATA Taka-aki
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (C)
- Research Field
  
  高分子構造・物性(含繊維)
- Research Institution
  Kyoto Institute of Technology
POLYMERS WITH PERIODIC STRUCTURE INDUCED BY NONLINEAR OPTICS
- Principal Investigator
  
  TSUTSUMI Naoto
- Project Period (FY)
  1999 – 2000
- Research Category
  
  Grant-in-Aid for Scientific Research (B).
- Research Field
  
  Applied optics/Quantum optical engineering
- Research Institution
  KYOTO INSTITUTE OF TECHNOLOGY

All 2024 2023 2022 2021

All Journal Article Presentation

[Journal Article] Direct observation of the thermo-oxidative degradation of PA66 by spin-trapping ESR analysis2023
- Author(s)
  Kurima Akihiro、Nguyen Thu Anh、Kinashi Kenji、Sakai Wataru、Tsutsumi Naoto
- Journal Title
  
  Polymer Degradation and Stability
  
  Volume: 215 Pages: 110429-110429
- DOI
  10.1016/j.polymdegradstab.2023.110429
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K05146
[Journal Article] Spin trapping analysis of the thermal degradation of polypropylene2022
- Author(s)
  Thu Anh Nguyen, Shota Ichise, Kenji Kinashi, Wataru Sakai, Naoto Tsutsumi, Satoko Okubayashi
- Journal Title
  
  Polymer Degradation and Stability
  
  Volume: 197 Pages: 109871-109871
- DOI
  10.1016/j.polymdegradstab.2022.109871
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K05146
[Journal Article] Spin Trapping Analysis of Radical Intermediates on the Thermo-Oxidative Degradation of Polypropylene2022
- Author(s)
  Nguyen Thu Anh、Lim Hui Ming、Kinashi Kenji、Sakai Wataru、Tsutsumi Naoto、Okubayashi Satoko、Hosoda Satoru、Sato Tetsu
- Journal Title
  
  Polymers
  
  Volume: 15 Issue: 1 Pages: 200-200
- DOI
  10.3390/polym15010200
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] Radical Reaction Analysis of Polymer Materials by Electron Spin Resonance2024
- Author(s)
  Wataru SAKAI
- Organizer
  KIT-ASEAN Joint Symposium 2024
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] ゴム材料におけるラジカル反応解析2023
- Author(s)
  坂井亙
- Organizer
  日本ゴム協会，令和５年度広島高分子材料研修会（広島ゴム技術員会２月例会講演会）
- Invited
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] SPIN TRAPPING & CHEMILUMINESCENCE ANALYSIS OF THERMO-OXIDATION OF POLYPROPYLENE2023
- Author(s)
  Thu Anh Nguyen, Yutaro Muramatsu, Kenji Kinashi, and Wataru Sakai
- Organizer
  マテリアルライフ学会主催：第15回ケミルミネッセンス研究会
- Invited
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] 高分子材料の劣化反応とラジカル反応解析2023
- Author(s)
  坂井亙
- Organizer
  東京工業大学特別講演会
- Invited
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] スピントラップ法による高分子材料の劣化反応のラジカル解析2023
- Author(s)
  坂井亙
- Organizer
  第26回ESRフォーラム研究会
- Invited
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] スピントラップ法による高分子材料の劣化反応のラジカル解析2023
- Author(s)
  坂井亙
- Organizer
  高分子学会，高分子計算機科学研究会
- Invited
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] CL-ESR分析によるポリプロピレンの熱酸化劣化反応の解析2023
- Author(s)
  坂井亙, Nguyen Anh Thu，木梨憲司，細田覚，佐藤哲
- Organizer
  マテリアルライフ学会，第34回研究発表会
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] 高分子材料の劣化とラジカル反応解析2023
- Author(s)
  坂井亙
- Organizer
  クラレ，くらしき研究センター特別講演
- Invited
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] スピントラップ法による高分子材料の劣化反応のラジカル解析2022
- Author(s)
  坂井　亙
- Organizer
  高分子学会主催・高分子同友会・高分子に関する最新の技術および市場を勉強する会
- Invited
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] 高分子材料の酸化劣化とラジカル2022
- Author(s)
  Nguyen Anh Thu，Lim Ming Hui，木梨憲司，坂井亙，佐藤哲
- Organizer
  マテリアルライフ学会第26回春季年次大会
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] スピントラップ法によるゴム材料の劣化反応のラジカル解析2022
- Author(s)
  坂井　亙
- Organizer
  日本ゴム協会・第160回環境劣化研究分科会
- Invited
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] Investigation of Thermo-Oxidative Degradation of Polypropylene Using Simultaneous CL-ESR Measurement2022
- Author(s)
  Thu Anh Nguyen, Yutaro Muramatsu, Kenji Kinashi, Wataru Sakai, and Naoto Tsustumi
- Organizer
  第61回電子スピンサイエンス学会年会
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] Investigation of Thermo-Oxidative Degradation of Polypropylene using ESR and CL2022
- Author(s)
  Thu Anh NGUYEN, Kenji KINASHI, Wataru SAKAI*, Naoto TSUSTUMI
- Organizer
  日本ゴム協会2022年年次大会
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] スピントラップ法によるゴム材料の劣化反応のラジカル解析2022
- Author(s)
  坂井　亙
- Organizer
  日本ゴム協会・第282回ゴム技術シンポジウム
- Invited
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] Oxidation Degradation of Polymer Materials2022
- Author(s)
  NGUYEN Anh Thu, KINASHI Kenji, SAKAI Wataru
- Organizer
  第25回ESRフォーラム研究会
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] Spin-Trapping Analysis for Thermal Degradation Polypropylene Fabric Using Supercritical Carbon Dioxide2022
- Author(s)
  Thu Anh Nguyen, Kenji Kinashi, Wataru Sakai, Naoto Tsutsumi, and Satoko Okubayashi
- Organizer
  3rd JAPAN-ASEAN Seminar 2022
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] Investigation of Thermo-Oxidative Degradation of Polypropylene Using Simultaneous CL-ESR Measurement2022
- Author(s)
  Thu Anh Nguyen, Yutaro Muramatsu, Kenji Kinashi, and Wataru Sakai
- Organizer
  日本ゴム協会第33 回エラストマー討論会
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] Spin-Trapping Analysis for Thermal Degradation Polypropylene Fiber Using Supercritical Carbon Dioxide2021
- Author(s)
  Thu Anh Nguyen, Kenji Kinashi, Wataru Sakai, Naoto Tsutsumi, and Satoko Okubayashi
- Organizer
  日本ゴム協会2021年年次大会
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] Spin-Trapping Analysis for Thermo-Oxidative Degradation of Polypropylene2021
- Author(s)
  Thu Anh Nguyen, Kenji Kinashi, Wataru Sakai
- Organizer
  第24回ESRフォーラム研究会
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] Spin-Trapping Analysis for Thermo-Oxidative Degradation of Polypropylene2021
- Author(s)
  Thu Anh Nguyen, Kenji Kinashi, Wataru Sakai, Naoto Tsutsumi, and Satoko Okubayashi
- Organizer
  ISMAR-APNMR-NMRSJ-SEST2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K05146
[Presentation] Spin-Trapping Analysis for Thermal Degradation Polypropylene Fiber Using Supercritical Carbon Dioxide2021
- Author(s)
  Thu Anh Nguyen, Kenji Kinashi, Wataru Sakai, Naoto Tsutsumi, and Satoko Okubayashi
- Organizer
  高分子学会第70回年次大会
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K05146

1. MIYATA Taka-aki (50188827)

# of Collaborated Projects: 3 results

# of Collaborated Products: 0 results
2. TSUTSUMI Naoto (50172036)

# of Collaborated Projects: 2 results

# of Collaborated Products: 0 results
3. WATANABE Toshiyuki (10210923)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results

Sakai Wataru 坂井 亙

SAKAI Wataru 坂井 亙

Research Projects

Research Products

Co-Researchers

The Analysis of Thermo-Oxidative Degradation of Polymer Materials by CL-ST-ESRPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

超短パルスレーザーを用いた多光子誘起周期構造の構築と解析Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Novel Organic Optical Devices Using Optical Poling

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

Mechanism of Phase Separation of Polymar Blends Induced by a Gradient of Light IntersityPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

POLYMERS WITH PERIODIC STRUCTURE INDUCED BY NONLINEAR OPTICS

Principal Investigator

Project Period (FY)

Research Category

Research Field

Research Institution

[Journal Article] Direct observation of the thermo-oxidative degradation of PA66 by spin-trapping ESR analysis2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Spin trapping analysis of the thermal degradation of polypropylene2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Spin Trapping Analysis of Radical Intermediates on the Thermo-Oxidative Degradation of Polypropylene2022

Author(s)

Journal Title

DOI

Data Source

[Presentation] Radical Reaction Analysis of Polymer Materials by Electron Spin Resonance2024

Author(s)

Organizer

Data Source

[Presentation] ゴム材料におけるラジカル反応解析2023

Author(s)

Organizer

Data Source

[Presentation] SPIN TRAPPING & CHEMILUMINESCENCE ANALYSIS OF THERMO-OXIDATION OF POLYPROPYLENE2023

Author(s)

Organizer

Data Source

[Presentation] 高分子材料の劣化反応とラジカル反応解析2023

Author(s)

Organizer

Data Source

[Presentation] スピントラップ法による高分子材料の劣化反応のラジカル解析2023

Author(s)

Organizer

Data Source

[Presentation] スピントラップ法による高分子材料の劣化反応のラジカル解析2023

Author(s)

Organizer

Data Source

[Presentation] CL-ESR分析によるポリプロピレンの熱酸化劣化反応の解析2023

Author(s)

Organizer

Data Source

[Presentation] 高分子材料の劣化とラジカル反応解析2023

Author(s)

Sakai Wataru 坂井亙

SAKAI Wataru 坂井亙