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              University of Groningen students stage sit in for social safety

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              Construction of badger tunnel underway in Molkwerum

              Pride and passion: football in the northern Netherlands

              Police detain underage fan after FC Groningen player is punched in Eredivisie game

              Watch: The New Energy Coalition is on a mission to improve our world

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              voting_ballot

              Unofficial election results are in, and it could be a nightmare come true for ruling coalition

              Groningen filmmaker wins Noordsterren prize at IFA 2023 with “Jäger”

              Groningen filmmaker wins Noordsterren prize at IFA 2023 with “Jäger”

              The Northern Times working together with TopDutch

              The Northern Times working together with TopDutch

              E Thomassen a Theussinklaan

              Drenthe makes it official — you can’t smoke or vape at bus stops

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                Groningen welcomes Qatar 2022 with cheer and criticism

                Groningen welcomes Qatar 2022 with cheer and criticism

                The anti Zwarte Piet protest in Emmen

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                Buses will no longer travel through the Grote Markt in Groningen

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                    Watch: A workplace that sells itself – CTO on working at Ocean Grazer

                    Watch: A workplace that sells itself – CTO on working at Ocean Grazer

                    It’s beginning to look a lot like Christmas

                    It’s beginning to look a lot like Christmas

                    People protesting on a street in Groningen.

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                      Watch: A workplace that sells itself – CTO on working at Ocean Grazer

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                      Watch: We’re hiring internationals to help us with foreign clients – ACS Buildings CEO

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                      New groundbreaking invention from UG-scientist Ben Feringa

                      Matthijs van Houten by Matthijs van Houten
                      July 30, 2018
                      in Education
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                      New groundbreaking invention from UG-scientist Ben Feringa
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                      The Groningen Nobel laureate Ben Feringa has made a groundbreaking discovery, together with researchers from the East China University of Science and Technology. They were able to produce a complex polymer in a simple way that could possibly be used in adhesives, self-repairing materials and degradable products.

                      Polymeric materials can be very versatile, but this comes at a cost. Complex functionality such as self-healing usually requires a complex synthetic process. The challenge is to prepare polymeric materials with integrated sophisticated properties using extremely simplified routes. University of Groningen organic chemist Ben Feringa, along with colleagues from the East China University of Science and Technology, has done just that. In a paper published in Science Advances on 27 July, they describe how to make a versatile polymer through a simple process.

                      In the paper, they begin with a natural molecule called thioctic acid. By melting this solid thioctic acid at 70 degrees Celsius and then cooling the material, a polymer is formed. However, it is not very stable. To counter this, Feringa and his colleagues added the compound 1,3-diisopropenylbenzene (DIB) and Iron(III) chloride. By merely adding the compounds before melting the thioctic acid, connections that stabilize the polymer were created.

                      Complex properties

                      Although the production is very simple, the resulting material has complex properties. Its mechanical properties are excellent. The material doesn’t crack under pressure and cutting it with a knife is not easy; nevertheless, the polymer can also be stretched up to 150 times its original length without breaking. Scratches on the surface will self-heal at room temperature and when freshly cut surfaces are pressed together, they will fuse and the resulting structure will have a strength comparable to that of virgin material.

                      The polymer also tends to attach itself to different surfaces by forming hydrogen bonds, which means it can be used as an adhesive. After heating the polymer to its melting point, the liquid was used to glue two glass slides together. A weight of 5 kg could be hung from slides bonded by a 2 x 2 cm glued area. The authors conclude that ‘this simple copolymer might have major potentials in the fabrication of adhesives, self-healing materials, and wearable and biodegradable devices.’

                      Feringa Nobel Prize Scientist Joint Research Center

                      The work described in this paper was done at the Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology (ECUST) in Shanghai. Feringa, who received an honorary professorship at ECUST in November 2016, helped in conceiving and designing the project. The Feringa Nobel Prize Scientist Joint Research Center was officially opened in October 2017

                      European Chemistry Gold Medal

                      On 26 August the European Chemistry Gold Medal Award will be presented to Ben Feringa. This new award was founded by the European Chemical Society (EuChemS) and honours a scientist who has made outstanding contributions to the field of chemistry. ‘Not only is Ben a fantastic scientist, he is a great ambassador for the field of chemistry, a gifted communicator and a source of inspiration for many scientists in Europe and the rest of the world’, says EuChemS board member Saskia de Vies.

                      More information

                      Reference: Qi Zhang, Chen-Yu Shi, Da-Hui Qu, Yi-Tao Long, Ben L. Feringa and He Tian. Exploring a naturally tailored small molecule for stretchable, self-healing, and adhesive supramolecular polymers. Read the full article.

                       

                      Tags: FeringaGroningenRUGscientistUGuniversity
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