Direct production of cellulose laurate by mechanical activation-strengthened solid phase synthesis

2012 ◽  
Vol 118 ◽  
pp. 624-627 ◽  
Author(s):  
Zuqiang Huang ◽  
Yunfang Tan ◽  
Yanjuan Zhang ◽  
Xiaoping Liu ◽  
Huayu Hu ◽  
...  
Keyword(s):  
Mechanical Activation ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Direct Production ◽  
Phase Synthesis

scholarly journals Acylation of Lignin with Different Acylating Agents by Mechanical Activation-Assisted Solid Phase Synthesis: Preparation and Properties

Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 907 ◽  
Author(s):  
Xiaohong Zhao ◽  
Yanjuan Zhang ◽  
Mei Yang ◽  
Zuqiang Huang ◽  
Huayu Hu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Mechanical Activation ◽  
Chain Length ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Carbon Number ◽  
Carbon Chain Length ◽  
Hydroxyl Groups ◽  
Phase Synthesis ◽  
Cyclic Anhydrides

Acylated lignins with substituents consisting of different lengths of carbon chains were prepared by a mechanical activation-assisted solid phase synthesis (MASPS) technology with a customized stirring ball mill as a reactor. The structures and properties were analyzed by UV/Vis, FTIR, NMR, SEM, DSC, and TG. The results showed that the acylated lignins were successfully prepared with either non-cyclic or cyclic anhydrides as the acylating agents. Both aliphatic hydroxyl and phenolic hydroxyl groups of lignin reacted with non-cyclic anhydrides, and different reactivity of acylating agents resulted in different relative contents of phenolic and aliphatic substituents in the products. The reactivity of the cyclic anhydrides was weaker than that of the non-cyclic anhydrides, and the reactivity of the acylating agents decreased with increasing carbon chain length and unsaturated bonds of acyl groups. All of the acylated lignins except maleylated lignin had a lower glass transition temperature (Tg) than the original lignin. The acylated lignins prepared with non-cyclic anhydrides had better thermal stability than original lignin, and the thermal stability increased, but Tg decreased with an increasing chain length of the acyl groups. The acylated lignins prepared with cyclic anhydrides had higher a Tg than those with non-cyclic anhydrides with the same carbon number, and the thermal stability was not obviously improved.

Green mechanical activation-assisted solid phase synthesis of cellulose esters using a co-reactant: effect of chain length of fatty acids on reaction efficiency and structure properties of products

RSC Advances ◽  
2015 ◽  
Vol 5 (27) ◽  
pp. 20656-20662 ◽  
Author(s):  
Huayu Hu ◽  
Haixia Li ◽  
Yanjuan Zhang ◽  
Yanmeng Chen ◽  
Zuqiang Huang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Efficient Technology ◽  
Cellulose Esters ◽  
Direct Production ◽  
Phase Synthesis ◽  
Chain Acyl ◽  
Long Chain ◽  
Structure Properties

A green, simple, and efficient technology for direct production of cellulose mixed esters with acetyl and long chain acyl substituents.

scholarly journals Esterification mechanism of lignin with different catalysts based on lignin model compounds by mechanical activation-assisted solid-phase synthesis

RSC Advances ◽  
2017 ◽  
Vol 7 (83) ◽  
pp. 52382-52390 ◽  
Author(s):  
Xiaohong Zhao ◽  
Yanjuan Zhang ◽  
Liping Wei ◽  
Huayu Hu ◽  
Zuqiang Huang ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Acetic Anhydride ◽  
Mechanical Activation ◽  
Sodium Acetate ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Model Compounds ◽  
Phase Synthesis ◽  
Lignin Model Compounds ◽  
Lignin Model

Four lignin model compounds were used in the reaction with acetic anhydride, with 4-dimethyl amino pyridine, sodium acetate, and sulfuric acid as catalysts to learn about the esterification mechanism of lignin by MASPS technology.

Effect of the mechanical activation of the reagents on the solid phase synthesis of iron (III) molybdate

1997 ◽  
Vol 256 (1-2) ◽  
pp. 108-111 ◽  
Author(s):  
D.D. Radeva ◽  
V. Blaskov ◽  
D. Klissurski ◽  
I. Mitov ◽  
A. Toneva
Keyword(s):  
Mechanical Activation ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Phase Synthesis

A green technology for the synthesis of cellulose succinate for efficient adsorption of Cd(ii) and Pb(ii) ions

RSC Advances ◽  
2016 ◽  
Vol 6 (32) ◽  
pp. 26817-26825 ◽  
Author(s):  
Xingzhen Qin ◽  
Jierong Zhou ◽  
Aimin Huang ◽  
Jialin Guan ◽  
Qinglong Zhang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Mechanical Activation ◽  
Ball Mill ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Synthesis Method ◽  
Green Technology ◽  
Phase Synthesis ◽  
Environmental Friendly

Cellulose succinate, directly prepared by a simple and green mechanical activation-assisted solid-phase synthesis method in a stirring ball mill, was used as environmental-friendly adsorbent for efficient adsorption of heavy metals.

Solid-phase synthesis of nanocrystalline lanthanum zirconate using mechanical activation

2017 ◽  
Vol 87 (10) ◽  
pp. 2258-2264 ◽  
Author(s):  
A. M. Kalinkin ◽  
A. V. Usoltsev ◽  
E. V. Kalinkina ◽  
V. N. Nevedomskii ◽  
O. F. Zalkind
Keyword(s):  
Mechanical Activation ◽  
Solid Phase Synthesis ◽  
Solid Phase ◽  
Lanthanum Zirconate ◽  
Phase Synthesis
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