Laccase-Catalyzed Grafting of Lauryl Gallate on Chitosan To Improve Its Antioxidant and Hydrophobic Properties

2021 ◽  
Author(s):  
Na Liu ◽  
Shuzhen Ni ◽  
Hailong Gao ◽  
Yongjie Chang ◽  
Yingjuan Fu ◽  
...  
Keyword(s):  
Hydrophobic Properties ◽  
Lauryl Gallate

Hydrophobic properties conferred to Kraft pulp by a laccase-catalysed treatment with lauryl gallate

2013 ◽  
Vol 167 (3) ◽  
pp. 302-308 ◽  
Author(s):  
Céline Reynaud ◽  
Sandra Tapin-Lingua ◽  
Graziano Elegir ◽  
Michel Petit-Conil ◽  
Stéphanie Baumberger
Keyword(s):  
Kraft Pulp ◽  
Hydrophobic Properties ◽  
Lauryl Gallate

Preparation and Hydrophobic Properties of 5-Arylalkylidenerhodanines

2007 ◽  
Author(s):  
Jan Dolezel ◽  
Josef Jampilek ◽  
Jiri Dohnal ◽  
Veronika Opletalova
Keyword(s):  
Hydrophobic Properties

Ultra-stable water-dispersive perovskite QDs encapsulated by triple siloxane coupling agent system with different hydrophilic/ hydrophobic properties

2021 ◽  
Author(s):  
Bingfeng Shi ◽  
Jianhua Lv ◽  
Ying Liu ◽  
Yang Xiao ◽  
Changli Lü
Keyword(s):  
Quantum Dots ◽  
Coupling Agent ◽  
Polar Solvent ◽  
Hydrophobic Properties ◽  
Agent System ◽  
Environmental Tolerance ◽  
Perovskite Quantum Dots ◽  
Improve Stability

Driven by the instability of perovskite quantum dots (PQDs), different encapsulation techniques are used to improve stability of PQDs. However, further improvements in the extreme environmental tolerance and polar solvent...

scholarly journals Adjustment of Hydrophobic Properties of Cellulose Materials

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1241
Author(s):  
Michael Ioelovich
Keyword(s):  
Ester Group ◽  
Hydroxyl Groups ◽  
Chemical Methods ◽  
Hydrophobic Properties ◽  
Cellulose Esters ◽  
Cellulose Modification ◽  
Polar Groups ◽  
Polar Substituents ◽  
Hydrolysis Of ◽  
Cellulose Materials

In this study, physicochemical and chemical methods of cellulose modification were used to increase the hydrophobicity of this natural semicrystalline biopolymer. It has been shown that acid hydrolysis of the initial cellulose increases its crystallinity, which improves hydrophobicity, but only to a small extent. A more significant hydrophobization effect was observed after chemical modification by esterification, when polar hydroxyl groups of cellulose were replaced by non-polar substituents. The esterification process was accompanied by the disruption of the crystalline structure of cellulose and its transformation into the mesomorphous structure of cellulose esters. It was found that the replacement of cellulose hydroxyls with ester groups leads to a significant increase in the hydrophobicity of the resulting polymer. Moreover, the increase of the number of non-polar groups in the ester substituent contributes to rise in hydrophobicity of cellulose derivative. Depending on the type of ester group, the hydrophobicity increased in the following order: acetate < propionate < butyrate. Therefore, tributyrate cellulose (TBC) demonstrated the most hydrophobicity among all studied samples. In addition, the mixed ester, triacetobutyrate cellulose (TAB), also showed a sufficiently high hydrophobicity. The promising performance properties of hydrophobic cellulose esters, TBC and TAB, were also demonstrated.

scholarly journals Haemagglutinating and Hydrophobic Properties of Corynebacterium (Eubacterium) Suis

1986 ◽  
Vol 27 (4) ◽  
pp. 520-530
Author(s):  
Jens Laurits Larsen ◽  
Peter Høgh ◽  
Kari Houind-Hougen
Keyword(s):  
Hydrophobic Properties

Adsorption of toluene on silicalite‐1/NaY composites: Influence of NaY pretreatment on hydrophobic properties

2021 ◽  
Vol 35 (3) ◽  
Author(s):  
Xuan Meng ◽  
Linpeng Jin ◽  
Chao Yang ◽  
Li Shi ◽  
Naiwang Liu ◽  
...  
Keyword(s):  
Hydrophobic Properties
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