Phase Separation Behavior of Poly(methyl methacrylate-co-dimethylaminoethyl methacrylate)/Methyl Silsesquioxane Hybrid Nanocomposites Studied by Dansyl Fluorescence

2005 ◽  
Vol 17 (6) ◽  
pp. 1521-1528 ◽  
Author(s):  
Q. R. Huang ◽  
Curtis W. Frank ◽  
David Mecerreyes ◽  
Willi Volksen ◽  
Robert D. Miller
Keyword(s):  
Phase Separation ◽  
Methyl Methacrylate ◽  
Hybrid Nanocomposites ◽  
Poly Methyl Methacrylate ◽  
Dimethylaminoethyl Methacrylate ◽  
Methyl Silsesquioxane ◽  
Phase Separation Behavior ◽  
Separation Behavior

Mesoscopic Dynamic Simulations of Poly (Methyl Methacrylate) and Poly (Ethylene Oxide) Blends

2014 ◽  
Vol 1033-1034 ◽  
pp. 491-495
Author(s):  
Min Zhang ◽  
Guo Fang Zhang ◽  
Yu Xi Jia
Keyword(s):  
Free Energy ◽  
Phase Separation ◽  
Ethylene Oxide ◽  
Methyl Methacrylate ◽  
Order Parameters ◽  
Density Profiles ◽  
Poly Ethylene Oxide ◽  
Poly Ethylene ◽  
Phase Separation Behavior ◽  
Separation Behavior

In this work, we use Mesoscopic Dynamic (MesoDyn) density function simulation to study the compatibility of polymer blends. The mesoscale model for Poly (methyl methacrylate) (PMMA) and Poly (ethylene oxide) (PEO) were set up. The free energy, enthalpy, entropy, order parameters and density profiles were got by the simulation. The results showed that the free energy density keeps constant negative value and the order parameters is much less than 0.1. And phase separation behavior was not observed during the whole simulation time. Using density profiles, the kinetics of phase separation was examined and the phase separation behavior. These indicates that PMMA and PEO is miscible.

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