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Dynamic crosslinking of flexible polymer chains via attractive and reversible interactions is widely employed to obtain autonomously self-healable ...

Macromolecules 35, 6284–6290 (2002). J. Mater. Chem. A 8, 24645–24654 (2020). ACS Appl. Mater. Interfaces 10, 38438–38448 (2018). Y.M. is grateful to fruitful discussions with Prof. T. Kitamura (Kyoto University), Prof. N. Yoshie (The University of Tokyo), Dr. J. Kato (Asahi Kasei Corporation), and Prof. S. Nishiwaki (Kyoto University). Intrinsic tuning of poly(styrene–butadiene–styrene)-based self-healing dielectric elastomer actuators with enhanced electromechanical properties. Macromol. Rapid Commun. 37, 1667–1675 (2016). In fact, PEMA4F21 exhibits high fracture stress (≈2 MPa) with high stretchability (≈1200%) due to the moderate network rearrangement at room temperature, whereas PEMA is purely viscous (Fig. 3a). The relaxation time τ (= ω−1) for network rearrangement at room temperature (28 °C) is 5.3 × 10−1 s in PEMA4F21, whereas that for the segmental motion of the polymer backbone is 2.3 × 10−6 s (Supplementary Fig. 9). PEA4F21 is viscous at room temperature because of its active network rearrangement. Alternatively, our fluorinated elastomer self-heals via cohesion between attractive PEMA segments at the damaged faces, where the network rearrangement accelerates the approach between PEMA segments via segmental diffusion of the polymer chains (Fig. 1c). Moreover, an increase in the fluoroalkyl chain length restricts the dissociation (Fig. 2d). Additionally, an increased fluoroalkyl content restricts dissociation owing to the crystallization of fluoroalkyl domains (Supplementary Fig. 8). The dissociation of the crosslinks triggers the autonomous rearrangement of the polymer network because the detached fluoroalkyl side chains quickly segregate into other fluoroalkyl domains. According to the differential scanning calorimetry (DSC) results (Fig. 2b), the present samples (except the pure homopolymer PF21) are amorphous. We introduced relatively long fluoroalkyl side chains with 17, 21, or 23 fluorine atoms along the PEMA main chain via radical copolymerization (Fig. 1a and Supplementary Fig. 1). The obtained fluorinated PEMAs are denoted as PEMAxFy, where x and y represent the fluoroalkyl content in mol% and the number of fluorine atoms in a fluoroalkyl side chain, respectively. At the same time, this network autonomously and moderately rearranges at room temperature because of the hopping of fluoroalkyl side chains between the nanosized domains (Fig. 1a). This elastomer readily self-heals at ambient temperature (Fig. 1b and Supplementary Movie S1). This ultrarapid healing occurs due to the cohesion between the attractive PEMA segments at the damaged faces (Fig. 1c), which is accelerated by the segmental diffusion of the PEMA segments between damaged faces induced by the network rearrangement.

In its comprehensive study Global Resection Guides Market from 2022 to 2028, by MarketQuest.biz provides an in-depth assessment of the given sector's.

This study depicts the industry in an authentic and up-to-date manner. The study begins by reviewing definitions, classifications, and market overviews for Resection Guides. It does, however, provide a better knowledge of the various product requirements, supplier chains, production processes, and cost structures. The analysis is divided into regions, types, and applications to offer a complete picture of the components of this worldwide Resection Guides industry.

The 26-year-old former Boro man has put pen-to-paper on a three year deal and leaves French side Rennes.

The 26-year-old was told in January he would no longer be needed under Chris Wilder and was instructed to find a move elsewhere. FORMER Middlesbrough midfielder James Lea-Siliki has left Rennes and completed a permanent move to Portuguese side Estoril. James Lea-Siliki completes permanent move to Portugal side Estoril

Caleb Timu, who played two Tests for Australia in 2018, and France prop Sipili Falatea were among a slew of new signings announced by Top 14 side ...

Bordeaux finished third in the regular Top 14 season last term before losing to eventual champions Montpellier in the semi-finals. They lost to eventual champions La Rochelle in the last 16 of the Champions Cup. He played twice at no.8 for the Wallabies against Ireland on their 2018 tour of Australia before spending two seasons with Montpellier, ending in 2021.

The automotive sector is continuously working to develop an integrated approach to a cleaner environment and lower carbon emissions. In order to minimize fuel ...

According to our research on Side by Side UTVs market and global economic environment, we forecast that the global market size of Side by Side UTVs will reach (2026 Market size $$) million $ in 2026 with a CAGR of % from 2021-2026. In the past few years, the Side by Side UTVs market experienced a huge change under the influence of COVID-19, the global market size of Side by Side UTVs reached $$ million $ in 2021 from $$ in 2016 with a CAGR of % from 2016-2021 is. Report Ocean is a ‘one-stop solution’ for individuals, organizations, and industries that are looking for innovative market research reports. China is one of the world’s largest auto marketplaces, both in terms of sales and production. By 2020, the Chinese government expects car production to reach 30 million units and 35 million by 2025. In the year 2020, Germany accounted for about 5% of global production. This report also covers all the regions and countries of the world, which shows the regional development status, including market size, volume and value, as well as price data. In this complex economic environment, we published the Global Side by Side UTVs Market Status, Trends and COVID-19 Impact Report 2021, which provides a comprehensive analysis of the global Side by Side UTVs market , This Report covers the manufacturer data, including: sales volume, price, revenue, gross margin, business distribution etc., these data help the consumer know about the competitors better. Entering 2021, Economic activity in many countries has started to recover and partially adapted to pandemic restrictions. In order to comprehend a market holistically, a variety of factors must be evaluated, including demographics, business cycles, and microeconomic requirements that pertain precisely to the market under study. Thus, this trend will continue to lead to the growth of the automotive sector. This has put a lot of pressure on a sector already dealing with a worldwide demand downturn due to decreased consumer needs.

A woman who drove onto the wrong side of the road caused a collision with another car. Amanda Geoghegan, 11, Castlecourt, Daingean, Offaly, was driving a ...

He fined Ms Geoghegan €100 for drink driving and gave her six months to pay. However, he said she will get credit for the early plea. She was ashamed and embarrassed.

On Aug. 7, People's Light will open its latest show, which also happens to be a 2020 Tony Award Nominee for Best Play from Bess Wohl.

As the kids descend on the Grand Horizons senior living community in an attempt to mediate, everything they thought they knew about their parents comes crashing down. “Her work is full of compassion for human beings, and ‘Grand Horizons’ is no exception. “We often see these characters pushed to the sidelines and denied the full scope of their humanity. The play explores characters who simply want to be seen, and all the hilarious ways they try to make that happen.” Wohl has gained national acclaim as both a playwright and screenwriter whose work has been nominated for Tony, Drama League, Lucille Lortel, and Drama Desk awards. “We’re thrilled to be working with Bess and Jackson again,” explains People’s Light Producing Artistic Director Zak Berkman in a statement.