Home > Press > Click coupled graphene: fabricating nanocomposites
 |
Abstract:
A graphene sheet can be incorporated with poly(ε-carprolactone) (PCL) to enhance the mechanical and thermal properties of shape memory polyurethane (SMP) if the filler can be properly dispersed through the polymer. Writing in the Journal of Polymer Science: Polymer Physics, Jae Whan Cho and colleagues introduce an effective technique using click coupled graphene to obtain high-performance nanocomposites.
Click coupled graphene: fabricating nanocomposites
Germany | Posted on October 13th, 2012Graphene holds great potential in applications like molecular electronics, field emission devices, actuators, and sensors. "Click coupling is an emerging modification method for graphene's functionalization due to its high specificity, quantitative yield, compatibility with a variety of functional groups, and versatile applications under mild conditions," says Cho. "The controlled high performance of graphene-based polymer nanocomposites, including the mechanical, electrical, and thermal applications, can be created by using click chemistry."
The use of the click coupling approach allows a high grafting ratio of PCL to a single graphene sheet, resulting in good solubility and processability. As a result of the successful grafting, the modified surface characteristics allow for a homogenous dispersion of functionalized graphene in the SMP matrix displaying a strong reinforcement effect.
The breaking stress, elongation-at-break, and Young's modulus of the SMP were greatly enhanced, increasing by 109%, 28%, and 158% respectively for 2.0 wt% of the PCL-GS nanofiller compared to pure SMP. Moreover, the thermal stability, thermal conductivity, and shape recovery behavior of the host polymer were also unprecedentedly improved after the insertion of the click coupled graphene sheet.
"This approach offers complementary advantages, such as the grafting of high molecular weight polymer chains and a better coverage ratio on the graphene surface. This is also though to greatly extend the application range of graphene and encourage the growth of graphene based high performance nanocomposites for shape memory application, actuator, sensor, and etc," explains Cho.
Looking to expand the approach, Cho says that click chemistry is useful for modifying the surface properties of other carbon nanomaterials such as carbon nanotubes, graphene, and fullerene to satisfy special needs. "This methodology will help us to develop more advanced biomaterials, nanostructured polymers, and hybrids based on carbon nanomaterials."
####
For more information, please click here
Copyright © Wiley-VCH Materials Science Journals
If you have a comment, please Contact us.Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
Bookmark:
| Related Links |
Link to the original paper on Wiley Online Library:
| Related News Press |
News and information
Sensors innovations for smart lithium-based batteries: advancements, opportunities, and potential challenges August 8th, 2025
Deciphering local microstrain-induced optimization of asymmetric Fe single atomic sites for efficient oxygen reduction August 8th, 2025
Lab to industry: InSe wafer-scale breakthrough for future electronics August 8th, 2025
Graphene/ Graphite
Electrifying results shed light on graphene foam as a potential material for lab grown cartilage June 6th, 2025
Breakthrough in proton barrier films using pore-free graphene oxide: Kumamoto University researchers achieve new milestone in advanced coating technologies September 13th, 2024
Nanotubes/Buckyballs/Fullerenes/Nanorods/Nanostrings
Enhancing power factor of p- and n-type single-walled carbon nanotubes April 25th, 2025
Chainmail-like material could be the future of armor: First 2D mechanically interlocked polymer exhibits exceptional flexibility and strength January 17th, 2025
Innovative biomimetic superhydrophobic coating combines repair and buffering properties for superior anti-erosion December 13th, 2024
Sensors
Sensors innovations for smart lithium-based batteries: advancements, opportunities, and potential challenges August 8th, 2025
Quantum engineers ‘squeeze’ laser frequency combs to make more sensitive gas sensors January 17th, 2025
Discoveries
Deciphering local microstrain-induced optimization of asymmetric Fe single atomic sites for efficient oxygen reduction August 8th, 2025
ICFO researchers overcome long-standing bottleneck in single photon detection with twisted 2D materials August 8th, 2025
New molecular technology targets tumors and simultaneously silences two ‘undruggable’ cancer genes August 8th, 2025
Simple algorithm paired with standard imaging tool could predict failure in lithium metal batteries August 8th, 2025
Materials/Metamaterials/Magnetoresistance
First real-time observation of two-dimensional melting process: Researchers at Mainz University unveil new insights into magnetic vortex structures August 8th, 2025
Researchers unveil a groundbreaking clay-based solution to capture carbon dioxide and combat climate change June 6th, 2025
A 1960s idea inspires NBI researchers to study hitherto inaccessible quantum states June 6th, 2025
Institute for Nanoscience hosts annual proposal planning meeting May 16th, 2025
Announcements
Sensors innovations for smart lithium-based batteries: advancements, opportunities, and potential challenges August 8th, 2025
Deciphering local microstrain-induced optimization of asymmetric Fe single atomic sites for efficient oxygen reduction August 8th, 2025
Japan launches fully domestically produced quantum computer: Expo visitors to experience quantum computing firsthand August 8th, 2025
ICFO researchers overcome long-standing bottleneck in single photon detection with twisted 2D materials August 8th, 2025
 |
||
 |
||
| The latest news from around the world, FREE | ||
 |
||
|
|
||
| Premium Products | ||
 |
||
|
Only the news you want to read!
Learn More |
||
 |
||
|
Full-service, expert consulting
Learn More |
||
|
|
||