Results 41 to 50 of about 6,364 (194)

Effects of CELF Pretreatment Severity on Lignin Structure and the Lignin-Based Polyurethane Properties

Frontiers in Energy Research, 2020
Conversion of technical lignin into performance biopolymers such as polyurethane offers environmental and economic advantages when combined with production of biofuels from biomass sugars, presenting significant interest toward studying the role of ...
Yun-Yan Wang, Priya Sengupta, Priya Sengupta, Brent Scheidemantle, Brent Scheidemantle, Yunqiao Pu, Yunqiao Pu, Charles E. Wyman, Charles E. Wyman, Charles E. Wyman, Charles M. Cai, Charles M. Cai, Charles M. Cai, Arthur J. Ragauskas, Arthur J. Ragauskas, Arthur J. Ragauskas   +15 more
doaj   +1 more source

Graphene Materials for Sustainable Energy Applications: A Contemporary Perspective

Carbon Energy, EarlyView.
ABSTRACT Graphene has garnered significant attention as a promising material with great potential for contributing to sustainable energy initiatives, such as RE100 (100% renewable energy initiative) and CF100 (100% carbon‐free initiative). This review aims to explore the potential of graphene for advancing renewable energy applications by highlighting
Niraj Kumar, Seul‐Yi Lee, Roop L. Mahajan, Soo‐Jin Park   +3 more
wiley   +1 more source

Conjugated Conductive Polymer Binders for Lithium Batteries: Structural Engineering and Design Principles

Carbon Energy, EarlyView.
Structural engineering of conjugated conductive polymer binders enables integrated electronic transport, strong adhesion, and stable electrode interfaces, offering a promising strategy to reduce inactive components and improve the performance of high‐energy lithium batteries.
Fating Wang, Fei Lv, Jingjing Guo, Min Hong, Xia Wang, Xiaohan Cai, Tiefeng Liu, Jun Lu   +7 more
wiley   +1 more source

Partially Biobased Polyurethanes With Reversibly Crosslinkable Furan Units Toward Recyclable Thermosetting Textile Fibres

Chemistry – A European Journal, EarlyView.
A molecular design strategy combines lignin‐derived aromatic units, sugar‐derived furan groups, and flexible glycol segments to create wet‐spinnable polyurethanes. Thermally reversible Diels–Alder crosslinking chemistry enables formation of crosslinked thermosetting fibers, repeated de‐crosslinking/re‐crosslinking cycles, and tunable fiber properties ...
Rafael N. L. Menezes, Fredrik Bäcklund, Tam T. Nguyen, Maria Maukonen, Zengwei Guo, Olga Gordivska, Cecilia Hansson, Baozhong Zhang   +7 more
wiley   +1 more source

Functional Group Analysis of Reaction Products from Thermolysis of Lignin in Ethylene Glycol and Diethylene Glycol.

Journal of The Japan Petroleum Institute, 1994
エチレングリコールおよびジエチレングリコール中におけるリグニンの熱分解反応について研究した。反応温度573Kと623Kにおいて3時間反応を行った。ジエチレングリコール中, 反応温度573Kでの反応以外では, 生成物は2液相に分離した。下相はグリコールが主成分で, その他に水溶性の生成物が含まれており, 上相は黒色のオイル状の液体であった。元素分析値, 1H-NMRおよび13C-NMR測定により水素および炭素の分布を定量し, 官能基濃度解析法により生成物中に含まれていると推定される13種類の官能基の濃度を決定した。解析に際して2種類の解析法について検討した: 方法1は解析データとして元素分析値と1H-NMRデータを用いる方法であり, 方法2では元素分析値, 1H-NMRデータのほかに13C ...
YOKOYAMA, Chiaki, NISHI, Kazuhiko, TAKAHASHI, Shinji   +2 more
openaire   +2 more sources

One century of teaching, research, and innovation in chemical engineering in Mexico: The role of chemical engineering in the background and future of polymer science and industrial production in Mexico

The Canadian Journal of Chemical Engineering, EarlyView.
Timeline of key academic milestones and individuals that shaped chemical engineering at FQ‐UNAM and in Mexico. Abstract One hundred years after the beginning of the teaching of Chemical Engineering in Mexico, which started in 1925 in the former National School of Chemical Sciences, currently Faculty of Chemistry (FQ) at National Autonomous University ...
Patricia Pérez‐Salinas, Alberto Rosas‐Aburto, Eduardo Vivaldo‐Lima   +2 more
wiley   +1 more source

Sustainable Hydrogen Production by Glycerol and Monosaccharides Catalytic Acceptorless Dehydrogenation (AD) in Homogeneous Phase

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Sustainable hydrogen production can be obtained from hydogen‐rich biomass‐derived organic molecules through Acceptorless Dehydrogenation (AD) reactions. Glycerol and sugars are available in large quantities from industry and can be successfully used as substrates in AD protocols, in the presence of tailored, selective, easily tunable and thermally ...
Sylwia Kostera, Luca Gonsalvi
wiley   +1 more source

Development of colorless wood via two-step delignification involving alcoholysis and bleaching with maintaining natural hierarchical structure

Journal of Wood Science, 2020
Lignin-free wood has been successfully developed via a two-step chemical treatment while maintaining its inherent hierarchical structure. The first step was alcoholysis which was conducted using ethylene glycol, and whose condition was optimized by ...
Yoshiki Horikawa, Rino Tsushima, Keiichi Noguchi, Satoshi Nakaba, Ryo Funada   +4 more
doaj   +1 more source

A Simple Regeneration Process Using a CO2‐Switchable‐Polarity Solvent for Cellulose Hydrogels

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The effect of transformation of the anion chemical structure on cellulose solubility by flowing CO2 gas into aqueous pyrrolidinium hydroxide solutions was investigated. The changes in anion structure allowed for the modulation of cellulose solubility in aqueous pyrrolidinium hydroxide solutions, thus establishing a simple and safe cellulose ...
Arata Matsui, Deandra Ayu Putri, Morgan L. Thomas, Yuko Takeoka, Masahiro Rikukawa, Masahiro Yoshizawa‐Fujita   +5 more
wiley   +1 more source

Effect of incorporation of lignin as bio-polyol on the performance of rigid lightweight wood–polyurethane composite foams

Journal of Wood Science, 2020
Density reduction has become a topical issue in wood composite materials for application in building and furniture. In this study, lightweight wood–polyurethane (W–PU) composite foams with the addition of 30 wt% wood particles were prepared.
Shupin Luo, Li Gao, Wenjing Guo
doaj   +1 more source