scholarly journals Molecular dynamics simulation aiming at interfacial characteristics of polymer chains on nanotubes with different layers

2017 ◽  
Author(s):  
Kun Li ◽  
Boqin Gu ◽  
Wanfu Zhu
1996 ◽  
Vol 104 (12) ◽  
pp. 4806-4813 ◽  
Author(s):  
E. Yu. Kramarenko ◽  
R. G. Winkler ◽  
P. G. Khalatur ◽  
A. R. Khokhlov ◽  
P. Reineker

2019 ◽  
Vol 21 (38) ◽  
pp. 21615-21625 ◽  
Author(s):  
Naveed Athir ◽  
Ling Shi ◽  
Sayyed Asim Ali Shah ◽  
Zhiyu Zhang ◽  
Jue Cheng ◽  
...  

Coarse-grained (CG) molecular dynamics simulations have been employed to study the thermo-mechanical response of a physically cross-linked network composed of zwitterionic moieties and fully flexible elastomeric polymer chains.


2018 ◽  
Vol 42 (7) ◽  
pp. 4991-4997 ◽  
Author(s):  
Ki Chul Kim ◽  
Seung Soon Jang

Thermal shrinkage ratios for PET copolymer models are correlated with the conformational change of polymer chains at molecular levels.


2019 ◽  
Vol 9 (14) ◽  
pp. 2832 ◽  
Author(s):  
Jiacai Li ◽  
Jiming Chen ◽  
Mingxiao Zhu ◽  
Henggao Song ◽  
Hongyu Zhang

The interface between nanofillers and matrix plays a key role in determining the properties of nanocomposites, but the interfacial characteristics of nanocomposites such as molecular structure and interaction strength are not fully understood yet. In this work, the interfacial features of a typical nanocomposite, namely epoxy resin (EP) filled with boron nitride nanosheet (BNNS) are investigated by utilizing molecular dynamics simulation, and the effect of surface functionalization is analyzed. The radial distribution density (RDD) and interfacial binding energy (IBE) are used to explore the structure and bonding strength of nanocomposites interface. Besides, the interface compatibility and molecular chain mobility (MCM) of BNNS/EP nanocomposites are analyzed by cohesive energy density (CED), free volume fraction (FFV), and radial mean square displacement (RMSD). The results indicate that the interface region of BNNS/EP is composed of three regions including compact region, buffer region, and normal region. The structure at the interfacial region of nanocomposite is more compact, and the chain mobility is significantly lower than that of the EP away from the interface. Moreover, the interfacial interaction strength and compatibility increase with the functional density of BNNS functionalized by CH3–(CH2)4–O– radicals. These results adequately illustrate interfacial characteristics of nanocomposites from atomic level.


Sign in / Sign up

Export Citation Format

Share Document