scholarly journals Phase separation behavior of poly(methyl methacrylate)/poly(styrene-co-maleic anhydride) in the presence of hollow silica nanotubes

RSC Advances ◽  
2018 ◽  
Vol 8 (71) ◽  
pp. 40701-40711 ◽  
Author(s):  
Xiong Lv ◽  
Min Zuo ◽  
Haimo Zhang ◽  
An Zhao ◽  
Weipu Zhu ◽  
...  
Keyword(s):  
Phase Separation ◽  
Maleic Anhydride ◽  
Methyl Methacrylate ◽  
Temperature Sensitivity ◽  
Arrhenius Equation ◽  
Silica Nanotubes ◽  
Hollow Silica ◽  
Separation Rate ◽  
Phase Separation Behavior ◽  
Separation Behavior

The applicability of Arrhenius equation to the phase separation behaviors for filled systems indicates that HSNTs results in the decline of temperature sensitivity for phase separation rate, but hardly changes the viscous diffusion essence of chains.

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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