ENGLISH
|
JAPANESE
|
CONNECT WITH US:
Home
About
Contact
Log in
*
Home
Press release
Feb 12, 2021 02:00 JST
Source:
Science and Technology of Advanced Materials
Elastomers develop stronger bonds of attachment
Molecular interactions within gels and rubbers can be controlled to fabricate stronger and more elastic materials.
TSUKUBA, Japan, Feb 12, 2021 - (ACN Newswire) - Elastomers are the soft, elastic materials, like gels and rubbers, that are found in automobile and airplane parts, in sports equipment, and are used to protect precision machinery and buildings against vibrations. Scientists now want to make them thinner and tougher, without losing elasticity. Nagoya University materials engineer Yukikazu Takeoka and colleagues reviewed the most recent efforts towards improving elastomers for the journal Science and Technology of Advanced Materials.
Different kinds of bonds can link elastomer chains together, changing how the material behaves. (Credit: Yukikazu Takeoka)
"Our review gives hints about the kind of molecular thinking that needs to go into making elastomers tougher," says Takeoka.
Elastomers are made of many, long molecular chains of repeating subunits. They can undergo large deformations when stretched, returning to their original shape when the tension is released. They can do this because their molecular chains have enough mobility to stretch and crunch up.
Elasticity and overall toughness depends on the interactions between the molecular chains inside the material. Scientists have been working on controlling how chains link together and interact in order to change elastomers' mechanical properties.
Takeoka and his team from Nagoya University's department of molecular and macromolecular chemistry explain that elastomers can be made tougher by introducing strong hydrogen or ionic bonds that can reversibly link elastomer chains together. These reversible bonds attach and detach from the elastomer chains as the material deforms. Scientists have used hydrogen bonds to fabricate strong hydrogels that can deform up to 600% and return to their original state within three minutes at 37 degrees Celsius or a few seconds at 50 degrees Celsius.
Elastomer chains can also be linked through ring-like 'cyclic' molecules, giving linked chains a large degree of flexibility and improved toughness. A team of scientists fabricated a very flexible elastomer by mixing solutions of polyethylene glycol and cyclic alpha-cyclodextrin in water.
Takeoka and his colleagues suggest that further combining elastomers linked by reversible bonds and moving cyclic molecules could lead to even tougher elastomers with better elongation. "Our review emphasizes the importance of examining molecular behaviour in detail while designing polymer materials," says Takeoka.
Paper:
https://www.tandfonline.com/doi/full/10.1080/14686996.2020.1849931
Further information
Yukikazu Takeoka
Nagoya University
Email:
ytakeoka@chembio.nagoya-u.ac.jp
About Science and Technology of Advanced Materials Journal
Open access journal STAM publishes outstanding research articles across all aspects of materials science, including functional and structural materials, theoretical analyses, and properties of materials.
Chikashi Nishimura
STAM Publishing Director
NISHIMURA.Chikashi@nims.go.jp
Press release distributed by ResearchSEA for Science and Technology of Advanced Materials.
Source: Science and Technology of Advanced Materials
Sectors: Chemicals, Spec.Chem, Science & Nanotech
Copyright ©2024 ACN Newswire. All rights reserved. A division of Asia Corporate News Network.
Latest Release
First-ever Mazda CX-80 Crossover SUV Unveiled in Europe
Apr 19, 2024 13:50 JST
Fujitsu develops technology to convert corporate digital identity credentials, enabling participation of non-European companies in European data spaces
Apr 19, 2024 10:17 JST
Mitsubishi Heavy Industries and NGK to Jointly Develop Hydrogen Purification System from Ammonia Cracking Gas
Apr 18, 2024 17:01 JST
Toyota Launches All-New Land Cruiser "250" Series in Japan
Apr 18, 2024 13:39 JST
Fujitsu and Oracle collaborate to deliver sovereign cloud and AI capabilities in Japan
Apr 18, 2024 11:14 JST
Eisai: Research on Treatments for Alzheimer's Disease Based on Its Pathological Mechanisms Recieves Award for Science and Technology (Research Category)
Apr 18, 2024 10:53 JST
All-New Triton Confirmed as First Double-Cab Pickup Truck to Achieve 2024 Five-Star ANCAP Safety Rating
Apr 18, 2024 09:22 JST
Eisai's Antiepileptic Drug Fycompa Injection Formulation Launched In Japan
Apr 17, 2024 16:17 JST
Honda Unveils Next-generation EV Series for China
Apr 17, 2024 12:15 JST
Lexus presents Time at the 2024 Milan Design Week
Apr 16, 2024 18:49 JST
Mitsubishi Corporation Announces Participation in a DAC Project in Louisiana, USA
Apr 16, 2024 14:36 JST
New circuit challenge for TOYOTA GAZOO Racing
Apr 15, 2024 17:21 JST
TOYOTA GAZOO Racing back on asphalt for Croatian challenge
Apr 12, 2024 19:36 JST
Heidelberg Materials North America Announces Latest Milestone in Edmonton CCUS Project
Apr 12, 2024 14:39 JST
MHIAEL Completes Expansion of the its Nagasaki Plant for Manufacture of Aero Engine Combustors
Apr 11, 2024 18:08 JST
Mitsubishi Shipbuilding Acquires Approval in Principle (AiP) from Classification Society ClassNK for Ammonia Fuel Supply System (AFSS)
Apr 11, 2024 17:50 JST
DOCOMO, NTT, NEC and Fujitsu Develop Top-level Sub-terahertz 6G Device Capable of Ultra-high-speed 100 Gbps Transmission
Apr 11, 2024 15:10 JST
Mitsubishi Corporation Announces Completion of Capital Raise by Nexamp
Apr 11, 2024 13:07 JST
Mitsubishi Shipbuilding Receives Order for Ammonia Fuel Supply System for Ammonia-Powered Marine Engine
Apr 10, 2024 16:55 JST
Transgene and NEC Present First Clinical Benefits of Neoantigen Cancer Vaccine, TG4050, in Head & Neck Cancer at AACR 2024
Apr 10, 2024 13:36 JST
More Latest Release >>
Related Release
A new spin on materials analysis
April 17 2024 22:00 JST
Kirigami hydrogels rise from cellulose film
April 12 2024 18:00 JST
Sensing structure without touching
February 27 2024 08:00 JST
Nano-sized probes reveal how cellular structure responds to pressure
November 21 2023 07:00 JST
Machine learning techniques improve X-ray materials analysis
November 17 2023 10:00 JST
A bio-inspired twist on robotic handling
November 14 2023 20:00 JST
GPT-4 artificial intelligence shows some competence in chemistry
October 17 2023 08:00 JST
Closing the loop between artificial intelligence and robotic experiments
August 24 2023 09:00 JST
Machine intelligence for designing molecules and reaction pathways
May 24 2023 09:00 JST
Face-down: Gravity's effects on cell movement
May 13 2023 00:00 JST
More Press release >>