Sepiolite-embedded binary nanocomposites of (alkyl)methacrylate-based responsive polymers: Role of silanol groups of fibrillar nanoclay on functional and thermomechanical properties

2021 ◽  
Vol 161 ◽  
pp. 104844
Author(s):  
Nur Sena Okten Besli ◽  
Nermin Orakdogen
Keyword(s):  
Thermomechanical Properties ◽  
Alkyl Methacrylate ◽  
Silanol Groups ◽  
Responsive Polymers

Kraft lignin-containing polyurethane adhesives: the role of hydroxypropylation on thermomechanical properties

2020 ◽  
pp. 1-17
Author(s):  
Júlia R. Gouveia ◽  
Leonardo D. Antonino ◽  
Guilherme E. S. Garcia ◽  
Lara Basílio Tavares ◽  
Amanda N. B. Santos ◽  
...  
Keyword(s):  
Kraft Lignin ◽  
Thermomechanical Properties ◽  
Polyurethane Adhesives

Role of nano titania on the thermomechanical properties of silicon carbide refractories

2020 ◽  
Vol 46 (16) ◽  
pp. 25921-25926 ◽  
Author(s):  
S. Velappan ◽  
P. Nivedhita ◽  
R. Vimala ◽  
Sellappan Raja
Keyword(s):  
Silicon Carbide ◽  
Thermomechanical Properties

Role of silanol groups in dispersing Mo(VI) on silica

1992 ◽  
Vol 16 (1-2) ◽  
pp. 71-76 ◽  
Author(s):  
R. D. Roark ◽  
S. D. Kohler ◽  
J. G. Ekerdt
Keyword(s):  
Silanol Groups

scholarly journals A role of free silanol groups of nanosilica surface in interaction with poly(vinyl pyrrolidone)

2018 ◽  
Vol 72 (2) ◽  
pp. 51 ◽  
Author(s):  
Olga Voronina ◽  
Maria Malysheva ◽  
Liudmyla Nosach ◽  
Eugeny Voronin ◽  
Vladimir Gun’ko ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Crucial Role ◽  
Vinyl Pyrrolidone ◽  
Initial Amount ◽  
Silanol Groups ◽  
Adsorption Monolayer ◽  
Poly Vinyl Pyrrolidone

In this work, a role of the number of free silanol groups at a nanosilica surface (specific surface area S<sub>BET</sub> = 250 m<sup>2</sup>/g, initial amount of silanols α<sub>ОН</sub> = 0.60-0.62 mmol/g) was analyzed in interaction with poly(vinyl pyrrolidone) (PVP) vs. the degree (Q<sub>TMS</sub>) of silica hydrophobization by hexamethyldisilazane at 100 <sup>o</sup>C. The value of Q<sub>TMS</sub> was 0.07, 0.42, 0.67, 0.81, 0.82, and 1.0. Adsorption of PVP onto a nanosilica surface was carried out from a water and water-ethanol (1:1) solutions of the polymer. It was shown that free silanol groups play a crucial role in the adsorption of poly(vinyl pyrrolidone). The value of the maximal adsorption (monolayer capacity) on completely hydrophobic nanosilica surface is approximately by 6.5 times lower than that for unmodified nanosilica

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