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YAMAGUCHI, Masayuki Professor, Director of Library, Director of Research Center for Carbon Neutral
Materials Science, Materials Chemistry Frontiers, Research Center for Carbon Neutral
◆Degrees
M.Eng Kyoto University (1989),Ph.D.Kyoto University (1999)
◆Professional Experience
: Tosoh Corporation , Yokkaichi Research Laboratory
◆Specialties
Polymer materials
◆Research Keywords
self-repairing, biomass-based polymer, polymer processing, multicomponent polymeric system, rheology
◆Research Interests
Material design of high-perfomance and/or functional biomass-based polymers
Enhancement of processability and mechanical properties of biomass-based polymers will be studied by polymer blend technology.
Design of Functional Polymer by Additives
To provide a novel function by additives and fillers.
Material design of self-repairing polymers
Material design of a new type of self-repairing properties will be established.
Rheological modification of thermoplastic resins
Improvement of processability and mechanical properties will be carried out by rheology modification.

■Publications

◆Published Papers
Anomalous Swelling Behavior of Graded Rubber
Quoc-Viet Do, Masayuki Yamaguchi, Vu Anh Doan
JOURNAL OF APPLIED POLYMER SCIENCE, 142, 17, -, 2025
Simultaneously enhanced alginate-based hydrogel self-recovery and mechanical strength upon intramolecular nodes and nanoparticulate joints
Yi Hsueh Chen, Masayuki Yamaguchi, Ping Huan Tsai, Hoang-Giang Dai Vo, Jing Lun Chang, Jrjeng Ruan
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, 307, 142056-142056, 2025
Development of gradient structure in miscible PMMA/PVDF blends under temperature gradient
Tsubasa Iida, Hiroyuki Hasegawa, Masayuki Yamaguchi, Kazuaki Matsumura, Mayo Hayakawa, Naoya Tsugawa
Polymer, 325, 128298-128298, 2025
Photocrosslinked Poly(Vinyl Alcohol)–Tung Oil–Natural Rubber Films: A Sustainable Solution for Enhanced Water Resistance and Mechanical Properties in Biodegradable Packaging
Pathavuth Monvisade, Apichaya Jianprasert, Tanaporn Sintoppun, Masayuki Yamaguchi, Suparat Rukchonlatee
Journal of Applied Polymer Science, -, 2025
Effect of Li Halides on the Mechanical Properties and Thermoplasticity of Poly(vinyl alcohol) Molded by Hot Pressing
Yusuke Taoka, Koyuru Suzuki, Masayuki Yamaguchi, Kazuaki Matsumura
Macromolecular Chemistry and Physics, -, 2025
◆Misc
Modification Techniques for Biomass-Based Plastics
Masayuki Yamaguchi
Photo-switched Biodegradation of Bioplastics in Marine Environments, 59-75, 2023
Rheological properties and structure growth under flow field of polycarbonate blends
山口政之
成形加工シンポジア(CD-ROM), 31st, -, 2023
Crystalline structure of polypropylene containing a miscible modifier
福田雄太, 山口政之
成形加工シンポジア(CD-ROM), 31st, -, 2023
Rheo-Raman Spectroscopic Observation of Flow-Induced Crystallization of Polyethylene with Various Molecular Weights
木田拓充, 上西尚輝, 竹下宏樹, 徳満勝久, 山口政之
レオロジー討論会講演要旨集(CD-ROM), 71st, -, 2023
Direct Observation of Microscopic Deformation Behavior of Deuterated Molecular Chains under Tensile Deformation of Polyethylene Solids
木田拓充, 田中亮, 塩野毅, 山口政之
成形加工(年次大会)(CD-ROM), 34th, -, 2023
◆Books
"カーボンナノチューブの局在化を利用した相分離ポリマーブレンドの設計", "カーボンナノチューブ"
技術情報協会, 2025
"異種物質の添加によるポリ乳酸の高性能化", "ポリ乳酸の生産・成形加工・高機能化技術"
シーエムシー, 2024
"流動誘起結晶化を利用した構造制御", "高分子の結晶化, 延伸による高性能化"
シーエムシー, 2024
"ポリウレタンの架橋密度とレオロジー特性", "ポリウレタンの材料設計、環境負荷低減と応用事例"
エヌ・ティー・エス, 2024
"非相溶なブレンドの構造制御", "リサイクル材・バイオマス複合プラスチックの技術と仕組"
S&T出版, 2023
◆Conference Activities & Talks
プラスチックのリサイクル促進に向けた材料設計・成形加工の技術と知識
サイエンス＆テクノロジー 1月度セミナー オンライン, 2025
Anomalos viscosity decrease of polycarbonate by addition of polystyrene with low molecular weight
Annual Meeting of Society of Plastic Engineering, ANTEC2025, Philadelphia, PA, USA, 2025
Anomalous dimensional change during post-processing annealing
The 20th Asian Workshop on Polymer Processing, Jeju, Korea, Nov.3-6, 2024., 2024
Modification technique of polypropylene by addition of low-density polyethylene
SIP international Symposium on Circular Economy in Sendai, Sendai, Miyagi, Oct. 23-24, 2024., 2024
Improvement of flowability using a blend technique
The International Conference on Advanced Materilas and Technology (ICAMT2024), Hanoi, Vietnam, Oct. 9-12, 2024., 2024

■Teaching Experience

Material Analysis with Training Course, Molecular and Functionality Design of Polymers (E), Polymer Chemistry II, New Materials Design and Synthesis(E), ナノ材料分析論（実習付）, 分子設計特論(E), 高分子化学特論II, 物質デザイン・創出特論(E)

■Contributions to  Society

◆Academic Society Affiliations
Society of Plastics Engineers, The Society of Rubber Science and Technology, Japan, Polymer Processing Society, The Chemical Society of Japan, The Japan Society of Polymer Processing, The Society of Polymer Science, The Society of Rheology
◆Academic Contribution
4th International Workshop on Polymer Engineering and Processing , Masayuki Yamaguchi, JAIST , 2012 , JAIST
3rd International Workshop on Polymer Engineering and Processing , M. Yamaguchi and T. Kaneko (JAIST) , 2011 , JAIST
JAIST International Symposium on Nano Technology 2010 , 責任者 マテリアルサイエンス研究科 山口政之 , 2010 , 石川県ハイテク交流センター
◆Committee Memberships
・ IRC2026 , Organizing Committee , 2024- 2026
・ A-PRCR2025 , Session Organizer , 2024- 2025
・ PPS-40, Auckland, New Zealand , International Scientiific Committee , 2024- 2025
◆Social Contribution
・ International Expert in BSc curriculum working group, The University of Yangon, Myanmer 2019

■Academic  Awards

・ 第34回論文賞 , プラスチック成形加工学会 , 2024
・ Best Paper Award, Society of Plastics Engineers, Applied Rheology Session , 2024
・ 功労者表彰 , プラスチック成形加工学会 , 2018