Phase miscibility and dynamic heterogeneity in PMMA/SAN blends through solvent free reactive grafting of SAN on graphene oxide

2018 ◽  
Vol 20 (29) ◽  
pp. 19470-19485 ◽  
Author(s):  
Tanyaradzwa S. Muzata ◽  
Jagadeshvaran P. L. ◽  
Goutam Prasanna Kar ◽  
Suryasarathi Bose
Keyword(s):  
Spatial Distribution ◽  
Graphene Oxide ◽  
Polymer Matrix ◽  
Solvent Free ◽  
Dynamic Heterogeneity ◽  
Coated Nanoparticles ◽  
Host Polymer

The spatial distribution of nanoparticles in a particular host polymer matrix can be improved by using brush coated nanoparticles.

Influence of Polymer Matrix on Polymer/Graphene Oxide Nanocomposite Intrinsic Properties

2021 ◽  
Vol 3 (10) ◽  
pp. 5145-5154
Author(s):  
Bich Ngoc Tran ◽  
Stuart C. Thickett ◽  
Vipul Agarwal ◽  
Per B. Zetterlund
Keyword(s):  
Graphene Oxide ◽  
Polymer Matrix ◽  
Intrinsic Properties

scholarly journals Efficient interfacial interaction for improving mechanical properties of polydimethylsiloxane nanocomposites filled with low content of graphene oxide nanoribbons

RSC Advances ◽  
2017 ◽  
Vol 7 (36) ◽  
pp. 22045-22053 ◽  
Author(s):  
Neng-Jian Huang ◽  
Jing Zang ◽  
Guo-Dong Zhang ◽  
Li-Zhi Guan ◽  
Shi-Neng Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Graphene Oxide ◽  
Filler Content ◽  
Interfacial Interaction ◽  
Solvent Free ◽  
The Other ◽  
Graphene Oxide Nanoribbons ◽  
Free Process ◽  
Reinforcement Efficiency

GONR-filled H-t-PDMS nanocomposites were fabricated by using a facile solvent-free process, and the reinforcement efficiency of GONRs at low filler content is superior to those of the other carbon nano-fillers.

In situ iodoalkane-reduction of graphene oxide in a polymer matrix: an easy and effective approach for the fabrication of conductive composites

2015 ◽  
Vol 3 (43) ◽  
pp. 11531-11539 ◽  
Author(s):  
Haiquan Guo ◽  
Fangfang Liu ◽  
Jianying Zhao ◽  
Haibo Yao ◽  
Rizhe Jin ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Polymer Matrix ◽  
Conductive Composites ◽  
Polyimide Composites

Graphene/polyimide composites with the conductivity of 2.22 S m−1 were fabricated via in situ reduction of graphene oxide by 1,2-diiodoethane.

scholarly journals One-pot three-component tandem annulation of 4-hydroxycoumarine with aldehyde and aromatic amines using graphene oxide as an efficient catalyst

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rabindranath Singha ◽  
Aminul Islam ◽  
Pranab Ghosh
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Aromatic Amines ◽  
Significant Loss ◽  
Solvent Free ◽  
One Pot ◽  
Efficient Catalyst ◽  
New Class ◽  
Broad Scope ◽  
Plausible Mechanism

AbstractA convenient and efficient solvent-free, facile, one-pot three-component graphene oxide catalysed approach has been described for the synthesis of chromeno-[4,3-b]quinolin-6-one derivatives from 4-hydroxycoumarin with aldehydes and aromatic amines. Graphene oxide (GO) has proved to be a new class of heterogeneous carbocatalyst which could be easily recovered and reused up to 5th run without significant loss of its catalytic activity. A broad scope of substrate applicability is offered and a plausible mechanism is also suggested for this developed protocol.

scholarly journals Modeling the Effective Conductive Properties of Polymer Nanocomposites with a Random Arrangement of Graphene Oxide Particles

2021 ◽  
pp. 167-180
Author(s):  
M. A Tashkinov ◽  
A. D Dobrydneva ◽  
V. P Matveenko ◽  
V. V Silberschmidt
Keyword(s):  
Finite Element ◽  
Graphene Oxide ◽  
Composite Materials ◽  
Polymer Matrix ◽  
Matrix Cracking ◽  
Tunneling Effect ◽  
Representative Volume ◽  
Representative Volume Elements ◽  
Oxide Particles ◽  
Conductive Properties

Сomposite materials are widely used in various industrial sectors, for example, in the aviation, marine and automotive industries, civil engineering and others. Methods based on measuring the electrical conductivity of a composite material have been actively developed to detect internal damage in polymer composite materials, such as matrix cracking, delamination, and other types of defects, which make it possible to monitor a composite’s state during its entire service life. Polymers are often used as matrices in composite materials. However, almost always pure polymers are dielectrics. The addition of nanofillers, such as graphene and its derivatives, has been successfully used to create conductive composites based on insulating polymers. The final properties of nanomodified composites can be influenced by many factors, including the type and intrinsic properties of nanoscale objects, their dispersion in the polymer matrix, and interphase interactions. The work deals with modeling of effective electric conductive properties of the representative volume elements of nanoscale composites based on a polymer matrix with graphene oxide particles distributed in it. In particular, methods for evaluating effective, electrically conductive properties have been studied, finite element modelling of representative volumes of polymer matrices with graphene oxide particles have been performed, and the influence of the tunneling effect and the orientation of inclusions on the conductive properties of materials have been investigated. The possibility of using models of resistive strain gauges operating on the principle of the tunneling effect is studied. Based on the finite-element modeling and graph theory tools, we created approaches for estimating changes in the conductive properties of the representative volume elements of a nanomodified matrix subjected to mechanical loading.

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