Interfacial Properties of Polymer Nanocomposites: Role of Chain Rigidity and Dynamic Heterogeneity Length Scale

2017 ◽  
Vol 50 (6) ◽  
pp. 2397-2406 ◽  
Author(s):  
Shiwang Cheng ◽  
Bobby Carroll ◽  
Wei Lu ◽  
Fei Fan ◽  
Jan-Michael Y. Carrillo ◽  
...  
Keyword(s):  
Polymer Nanocomposites ◽  
Interfacial Properties ◽  
Length Scale ◽  
Dynamic Heterogeneity ◽  
Chain Rigidity

scholarly journals Role of adsorbed chain rigidity in reinforcement of polymer nanocomposites

2018 ◽  
Vol 57 (1) ◽  
pp. 9-14 ◽  
Author(s):  
Siyang Yang ◽  
Mohammed Hassan ◽  
Pinar Akcora
Keyword(s):  
Polymer Nanocomposites ◽  
Chain Rigidity

Role of Casting Solvent on Nanoparticle Dispersion in Polymer Nanocomposites

2014 ◽  
Vol 47 (15) ◽  
pp. 5246-5255 ◽  
Author(s):  
Nicolas Jouault ◽  
Dan Zhao ◽  
Sanat K. Kumar
Keyword(s):  
Polymer Nanocomposites ◽  
Nanoparticle Dispersion

The Role of Interface on the Toughening and Failure Mechanisms of Thermoplastic Nanocomposites Reinforced with Nanofibrillated Rubber

Nanoscale ◽  
2021 ◽  
Author(s):  
Mahdi Zeidi ◽  
Chun Il Kim ◽  
Chul B B. Park
Keyword(s):  
Polymer Nanocomposites ◽  
Functional Properties ◽  
Crucial Role ◽  
Failure Mechanisms

Interface plays a crucial role on the physical and functional properties of polymer nanocomposites, yet its effects have not been fully recognized in the setting of classical continuum-based modeling. In...

scholarly journals Insights into the role of protein molecule size and structure on interfacial properties using designed sequences

2013 ◽  
Vol 10 (80) ◽  
pp. 20120987 ◽  
Author(s):  
Mirjana Dimitrijev Dwyer ◽  
Lizhong He ◽  
Michael James ◽  
Andrew Nelson ◽  
Anton P. J. Middelberg
Keyword(s):  
Stress Response ◽  
Molecular Size ◽  
Interfacial Properties ◽  
Protein Molecule ◽  
Mixed System ◽  
Free Energy Of Adsorption ◽  
Air Water Interface ◽  
A Chain ◽  
Size And Structure

Mixtures of a large, structured protein with a smaller, unstructured component are inherently complex and hard to characterize at interfaces, leading to difficulties in understanding their interfacial behaviours and, therefore, formulation optimization. Here, we investigated interfacial properties of such a mixed system. Simplicity was achieved using designed sequences in which chemical differences had been eliminated to isolate the effect of molecular size and structure, namely a short unstructured peptide (DAMP1) and its longer structured protein concatamer (DAMP4). Interfacial tension measurements suggested that the size and bulk structuring of the larger molecule led to much slower adsorption kinetics. Neutron reflectometry at equilibrium revealed that both molecules adsorbed as a monolayer to the air–water interface (indicating unfolding of DAMP4 to give a chain of four connected DAMP1 molecules), with a concentration ratio equal to that in the bulk. This suggests the overall free energy of adsorption is equal despite differences in size and bulk structure. At small interfacial extensional strains, only molecule packing influenced the stress response. At larger strains, the effect of size became apparent, with DAMP4 registering a higher stress response and interfacial elasticity. When both components were present at the interface, most stress-dissipating movement was achieved by DAMP1. This work thus provides insights into the role of proteins' molecular size and structure on their interfacial properties, and the designed sequences introduced here can serve as effective tools for interfacial studies of proteins and polymers.

Carbon nanotube-polymer nanocomposites: The role of interfaces

2005 ◽  
Vol 11 (8-9) ◽  
pp. 567-586 ◽  
Author(s):  
C. Velasco-Santos ◽  
A. L. Martinez-Hernandez ◽  
V. M. Castano
Keyword(s):  
Carbon Nanotube ◽  
Polymer Nanocomposites

Gas diffusion in polymer nanocomposites: Role of defects and caves in fillers

2021 ◽  
Vol 28 (10) ◽  
Author(s):  
Jianfeng Wan ◽  
Wenyan Bi ◽  
Xiangbiao Liao ◽  
Hang Xiao ◽  
Xi Chen ◽  
...  
Keyword(s):  
Polymer Nanocomposites ◽  
Gas Diffusion
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