On the Origin of Heterogeneous Diffusion in Glassy Poly(alkyl methacrylates)

2019 ◽  
Vol 57 (17) ◽  
pp. 1097-1104
Author(s):  
Vladimir M. Syutkin ◽  
Vladimir L. Vyazovkin ◽  
Boris V. Bol'shakov ◽  
Sergey Grebenkin
Keyword(s):  
Alkyl Methacrylates

Association of Graft Copolymers of Alkyl Methacrylates with α-Methyl-ω-hydroxy-poly(oxyethylene) ethacrylates

1995 ◽  
Vol 60 (11) ◽  
pp. 1971-1985 ◽  
Author(s):  
Čestmír Koňák ◽  
Zdeněk Tuzar ◽  
Pavla Kopečková ◽  
Joseph D. Andrade ◽  
Jindřich Kopeček
Keyword(s):  
Light Scattering ◽  
Graft Copolymers ◽  
Water Solution ◽  
Pure Water ◽  
Solution Properties ◽  
Monomer Composition ◽  
Special Procedure ◽  
Methyl Cellosolve ◽  
Hexyl Methacrylate ◽  
Alkyl Methacrylates

Solution properties of the statistical copolymers of alkyl methacrylates (AMA) with α-methyl-ω-hydroxy-poly(oxyethylene) methacrylates (MPOEMA) (nonionic polysoaps) were studied using static and dynamic ligh scattering as a function of monomer composition and concentration in aqueous and methyl cellosolve solutions. The solubility of the copolymers in water was found to be dependent on molar contant of AMA. While copolymers with low content of hexyl methacrylate (HMA) (0 and 20 mole %) were directly soluble in water, forming true solutions with a low content of large swollen aggregates, copolymers with a higher content of HMA or lauryl methacrylate (LMA) were not directly dispersable in water. A special procedure, the stepwise dialysis from methyl cellosolve solutions against water, had to be used to prepare them in the pseudomicellar form. The copolymers were directly soluble in methyl cellosolve and its water solution containing up to 60 vol.% of water. Nevertheless, the light scattering experiments were dominated by light scattering of swollen particles of aggregated copolymer molecules. The copolymers were not soluble in the mixtures containing 70-100 vol.% of water. Paramaters of aggregates in the mixture with 60 vol.% of water and in pure water were found to be very similar.

Copolymers of alkyl methacrylates as pour-point depressants for diesel fuels

1983 ◽  
Vol 19 (3) ◽  
pp. 132-135
Author(s):  
V. I. Ivanov ◽  
S. T. Bashkatova ◽  
L. N. Shapkina ◽  
A. A. Levin
Keyword(s):  
Pour Point ◽  
Diesel Fuels ◽  
Pour Point Depressants ◽  
Alkyl Methacrylates

The Shear Properties of Poly (N-Alkyl Methacrylates) in Concentrated Contacts

1977 ◽  
Vol 20 (2) ◽  
pp. 152-160 ◽  
Author(s):  
J. K. A. Amuzu ◽  
B. J. Briscoe ◽  
D. Tabor
Keyword(s):  
Shear Properties ◽  
Alkyl Methacrylates

Thermal degradation of poly(alkyl methacrylates)

2009 ◽  
Vol 101 (1) ◽  
pp. 309-313 ◽  
Author(s):  
Zbigniew Czech ◽  
Robert Pełech
Keyword(s):  
Thermal Degradation ◽  
Alkyl Methacrylates

Dielectric relaxation study of mixtures of alkyl methacrylates and 1-alcohols using time-domain reflectometry

2006 ◽  
Vol 86 (5) ◽  
pp. 291-300 ◽  
Author(s):  
P. Sivagurunathan ◽  
K. Dharmalingam ◽  
K. Ramachandran ◽  
B. Prabhakar Undre ◽  
P. W. Khirade ◽  
...  
Keyword(s):  
Dielectric Relaxation ◽  
Time Domain ◽  
Time Domain Reflectometry ◽  
Relaxation Study ◽  
Alkyl Methacrylates
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