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Yasuyuki Nakamura
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Exception search in databases for polymers with practically contradictory properties of heat resistance and transparency
Description/Abstract:
データベース内における未探索領域を定義し探索することで新規材料を見出す方法を提案した。ポリマー化学構造・物性値データベースであるPoLyInfoを用い、実材料的には相反する性質である高い耐熱性とともに高い透明性を有するポリマーを探索した。見いだされた候補ポリマーが求める性質...
Keyword:
Database
,
Heat resistant polymer
,
Materials informatics
,
Polymer
,
Property prediction
, and
Transparent material
Resource Type:
Article
Author:
Yasuyuki Nakamura
,
Alice Gros
,
Wenhao Zhang
,
Keitaro Sodeyama
, and
Masanobu Naito
Journal:
Polymer Chemistry
Date Uploaded:
26/07/2024
Chemical Structure Evaluations of Amine Hardeners to Ensure and Predict the Performance of Wet Adhesion of Epoxies
Description/Abstract:
吸水したエポキシ接着剤の化学構造と性能の関係は湿潤環境や水中で使用される際の基礎データとなる。しかし化学構造が湿潤状態での接着性に及ぼす影響についての実験データは不十分である。本研究では各種アミン硬化剤を用いたエポキシ接着剤について、アミンの化学構造と接着性能を系統的に検討...
Keyword:
Amine hardener
,
Epoxy
,
Experimental verification
,
Machine-learning prediction
, and
Wet adhesion
Resource Type:
Article
Author:
Yasuyuki Nakamura
,
Yusuke Hibi
,
Kimiyoshi Naito
,
Norie Yamamoto
, and
Misato Hanamura
Journal:
Bulletin of the Chemical Society of Japan
Date Uploaded:
17/07/2024
Passerini polymerization of α-lipoic acid for dynamically crosslinking 1,2-dithiolane-functionalized polymers
Description/Abstract:
α-リポ酸を天然原料として使用したPasserini重合反応により、1,2-ジチオラノ官能基を持つポリアミドが一段階の反応で得られます。このポリアミドは動的な共有結合ネットワークの特性を示し、自己修復、再利用可能な強い接着性、および脱架橋と再架橋を通じた再生が可能です。
Keyword:
Adaptive network
,
Adhesion
,
Dynamic covalent bond
,
Lipoic acid
,
Passerini reaction
,
Polymerization
, and
Reusable and recyclable
Resource Type:
Article
Author:
Yasuyuki Nakamura
,
Yi-Shen Huang
,
Chih-Feng Huang
, and
Sadaki Samitsu
Journal:
Chemical Communications
Date Uploaded:
17/07/2024
Spatial Dynamics of Water Molecules Confined in Deuterated Epoxies by Quasi-Elastic Neutron Scattering
Description/Abstract:
エポキシ樹脂中での空間的な水のダイナミクスについて、吸水させた重水素化エポキシ樹脂のQENS測定による水選択的な観測を行った。エポキシ樹脂の化学組成でダイナミクスは大きく変化し、量論比組成では非量論比組成に比べて大きな空間ダイナミクスを有することを明らかにした。
Keyword:
Deuterated polymer
,
Epoxy
,
Quasi-elastic neutron scattering
, and
Water dynamics
Resource Type:
Article
Author:
Yasuyuki Nakamura
,
Taiki Tominaga
,
Takayuki Iwata
,
Koki Inoue
,
Yoshihisa Fujii
,
Nagayasu Oshima
, and
Masanobu Naito
Journal:
Macromolecules
Date Uploaded:
17/07/2024
Revealing factors influencing polymer degradation with rank-based machine learning
Description/Abstract:
The efficient treatment of polymer waste is a major challenge to marine sustainability. It is useful to reveal the factors that dominate ...
Keyword:
PoLyInfo
,
polymer degradation
, and
rank-based machine learning
Resource Type:
Article
Author:
Weilin Yuan
,
Yusuke Hibi
,
Ryo Tamura
,
Masato Sumita
,
Yasuyuki Nakamura
,
Masanobu Naito
, and
Koji Tsuda
Journal:
Patterns
Date Uploaded:
10/11/2023
Impact of Telechelic Polymer Precursors on the Viscoelastic Properties of Vitrimers
Description/Abstract:
結合交代性を有する架橋高分子材料ビトリマーについて、合成原料として架橋反応点の位置が規定されたテレケリックポリマーを用いた場合、反応点が規定されていないランダムポリマーに対して大きく粘弾性特性が異なることを明らかにした。テレケリックポリマーから得られたビトリマーは昇温により...
Keyword:
Crosslink polymer
,
Dynamic covalent bond
,
Reversible-deactivation radical polymerization
,
Telechelic polymer
,
Viscoelasticity
, and
Vitrimer
Resource Type:
Article
Author:
Yasuyuki Nakamura
,
Mizuki Tenjimbayashi
,
Akinori Moriya
, and
Masanobu Naito
Date Uploaded:
30/03/2023
Date Modified:
03/04/2023
Understanding the evolution of a de novo molecule generator via characteristic functional group monitoring
Description/Abstract:
AIを用いた機能性有機化合物の開発。
Keyword:
De novo molecule generation
,
characteristic functional group monitoring
,
chromophore
, and
deep learning
Resource Type:
Article
Author:
Takehiro Fujita
,
Kei Terayama
,
Masato Sumita
,
Ryo Tamura
,
Yasuyuki Nakamura
,
Masanobu Naito
, and
Koji Tsuda
Date Uploaded:
15/02/2023
Date Modified:
20/03/2024
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Yasuyuki Nakamura
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