scholarly journals Neutron total scattering investigation on the dissolution mechanism of trehalose in NaOH/urea aqueous solution

2021 ◽  
Vol 8 (1) ◽  
pp. 014901
Author(s):  
Hong Qin ◽  
Changli Ma ◽  
Sabrina Gärtner ◽  
Thomas F. Headen ◽  
Taisen Zuo ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Dissolution Mechanism ◽  
Total Scattering ◽  
Urea Aqueous Solution ◽  
Neutron Total Scattering

Quantitative NMR investigation on the low-temperature dissolution mechanism of chitin in NaOH/urea aqueous solution

Cellulose ◽  
2015 ◽  
Vol 22 (4) ◽  
pp. 2221-2229 ◽  
Author(s):  
Geying Ru ◽  
Huan Luo ◽  
Xinmiao Liang ◽  
Liying Wang ◽  
Chaoyang Liu ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Low Temperature ◽  
Dissolution Mechanism ◽  
Quantitative Nmr ◽  
Urea Aqueous Solution

The thermodynamics study on the dissolution mechanism of cellobiose in NaOH/urea aqueous solution

2012 ◽  
Vol 111 (1) ◽  
pp. 891-896 ◽  
Author(s):  
Xiaojun Zhao ◽  
Yuting Chen ◽  
Xinwei Jiang ◽  
Yuhan Shang ◽  
Long Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Dissolution Mechanism ◽  
Urea Aqueous Solution

scholarly journals Radiation-initiated high strength chitosan/lithium sulfonate double network hydrogel/aerogel with porosity and stability for efficient CO2 capture

RSC Advances ◽  
2021 ◽  
Vol 11 (33) ◽  
pp. 20486-20497
Author(s):  
Zhiyan Liu ◽  
Rui Ma ◽  
Wenjie Du ◽  
Gang Yang ◽  
Tao Chen
Keyword(s):  
Aqueous Solution ◽  
High Strength ◽  
Beam Radiation ◽  
Chitosan Hydrogel ◽  
Double Network ◽  
Electron Beam Radiation ◽  
Freeze Dried ◽  
Urea Aqueous Solution ◽  
Capture Capacity

Chitosan hydrogel is regenerated from alkali/urea aqueous solution and the lithium sulfonate second network is introduced by electron beam radiation-initiated in situ free radical polymerization. The freeze-dried aerogel has CO2 capture capacity.

Activation of Enzymatic Hydrolysis Lignin by NaOH/Urea Aqueous Solution for Enhancing Its Sulfomethylation Reactivity

2018 ◽  
Vol 7 (1) ◽  
pp. 1120-1128 ◽  
Author(s):  
Binpeng Zhang ◽  
Dongjie Yang ◽  
Huan Wang ◽  
Yong Qian ◽  
JinHao Huang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Enzymatic Hydrolysis ◽  
Hydrolysis Lignin ◽  
Urea Aqueous Solution

scholarly journals The atomic structure of a MgCo2O4 nanoparticle for a positive electrode of a Mg rechargeable battery

2019 ◽  
Vol 55 (17) ◽  
pp. 2517-2520 ◽  
Author(s):  
Naoto Kitamura ◽  
Yuhei Tanabe ◽  
Naoya Ishida ◽  
Yasushi Idemoto
Keyword(s):  
Monte Carlo ◽  
Atomic Structure ◽  
Positive Electrode ◽  
Scattering Data ◽  
Rechargeable Battery ◽  
Reverse Monte Carlo ◽  
Spinel Type ◽  
Total Scattering ◽  
X Ray ◽  
Neutron Total Scattering

The atomic structure of a spinel-type MgCo2O4 nanoparticle was investigated by the reverse Monte Carlo modelling using X-ray and neutron total scattering data.

Recycled fiber treated with NaOH/urea aqueous solution: effects on physical properties of paper sheets and on hornification

2018 ◽  
Vol 33 (4) ◽  
pp. 651-660 ◽  
Author(s):  
Yingju Miao ◽  
Yunfei Zhi ◽  
Heng Zhang ◽  
Ying Chen ◽  
Shaoyun Shan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Physical Properties ◽  
Water Retention ◽  
Crystalline Region ◽  
Cellulose Film ◽  
Reinforced Concrete Structure ◽  
Water Retention Value ◽  
Fiber Network ◽  
Urea Aqueous Solution ◽  
Intramolecular Hydrogen

Abstract Hydrogen bonding among fiber microfibrils is the primary cause of fiber hornification, wherein NaOH/urea aqueous solution precooled to −13 °C can disassemble inter- and intramolecular hydrogen bonds. Whether hornified fibers treated with this process can significantly improve fiber swelling ability and physical properties of the resulting paper sheets remains a problem. In this investigation, the 6th cycle fiber was pretreated with this procedure, and the water retention value of the fiber before and after treatment and the physical properties of the resulting paper sheets were studied. The results indicate that the lignin decline, complete swelling of flat fiber, filling of cellulose film between the interfiber network, and decreasing crystalline region all contribute to the increase in water retention value. The water retention value of repaired fiber is equivalent to that of virgin pulp, and hornification reverses by 89 %. In addition, the cellulose film filling among the fiber network constructs a similar reinforced concrete structure, which causes the tear, burst, and tensile index of the resulting paper sheets to increase by 145 %, 98 %, and 43 %, respectively.

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