Investigation of the conditions of negative thixotropy of poly(methyl methacrylate) solutions in low-viscosity solvents. II. Quantitative analysis of the time dependences of viscosity

1972 ◽  
Vol 37 (3) ◽  
pp. 980-987 ◽  
Author(s):  
O. Quadrat
Keyword(s):  
Quantitative Analysis ◽  
Methyl Methacrylate ◽  
Poly Methyl Methacrylate ◽  
Low Viscosity ◽  
Negative Thixotropy

scholarly journals X-ray powder diffraction quantitative analysis of an amorphous SiO2–poly(methyl methacrylate) nanocomposite

2008 ◽  
Vol 41 (6) ◽  
pp. 985-990 ◽  
Author(s):  
P. Riello ◽  
M. Munarin ◽  
S. Silvestrini ◽  
E. Moretti ◽  
L. Storaro
Keyword(s):  
Quantitative Analysis ◽  
Methyl Methacrylate ◽  
Powder Diffraction ◽  
Amorphous Material ◽  
Hybrid Nanocomposite ◽  
Amorphous Sio2 ◽  
X Ray ◽  
Poly Methyl Methacrylate ◽  
Quantification Method ◽  
The Individual

Quantification of individual phases within a multiphase amorphous material has been achieved using a newly developed technique based on X-ray powder diffraction. The quantification method was developed during a study of an amorphous silica–poly(methyl methacrylate) (SiO2–PMMA) hybrid nanocomposite. The efficiency of the method as a quantifying tool for individual phases was demonstrated for samples of SiO2–PMMA prepared either by polymerization of methyl methacrylate in the presence of amorphous SiO2or by mechanically mixing known quantities of the individual and pre-prepared SiO2and PMMA materials. The weight percentages of amorphous SiO2in the nanocomposites as determined by application of the new technique were analogously found to be 29%, a result that was supported by thermogravimetric analysis and helium picnometry measurements.

Quantitative Analysis of Polystyrene and Poly(methyl methacrylate) Nanoplastics in Tissues of Aquatic Animals

2021 ◽  
Vol 55 (5) ◽  
pp. 3032-3040 ◽  
Author(s):  
Xiao-Xia Zhou ◽  
Shuai He ◽  
Yan Gao ◽  
Hai-Yuan Chi ◽  
Du-Jia Wang ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Methyl Methacrylate ◽  
Aquatic Animals ◽  
Poly Methyl Methacrylate
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