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ladies and gentlemen good morning um i would like to devise my five minutes
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to show you how we utilise the intricate balances all it does a lot on multiple and scales
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bowie as our main line of research but also to design novel are soft materials
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that have interesting up ah a potential for technological application
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so i'm sure that many of you know that my materials typically have extraordinary properties of or
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unusual combinations of properties and typically the origin is what is called hierarchical structure formation
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that is to say my materials have structuring or on many things yes
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like other things yeah super molecular and scale novel microstructure and finally the microscopic shape
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but as important as that structure and order actually is optional from your everyday life that
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in this all those actually inevitable this is what my partner looks like everyday it
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takes an enormous effort to clean it up again and the next day all by itself
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well with my two little kids as the catalyst it looks again like this
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but if this author's inevitable it will also inevitably be included
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instructional materials but that is not necessarily short come
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because if for example you want to create a structural material that is resilient you don't want it to be a
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hundred percent is all that okay but you also do not want it to be a hundred percent or that
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you want to maintain on certain length scales the balance of all dentist order and
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as a matter of fact this is what really nature is a champion
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and this is what we try to copy nor materials we try to balance all in
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this order we try to control where this or that segment in our materials replace
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we try to create order from this or don't another thing scale design materials that are
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close to all that is all the transitions and finally make structural radiance that bland
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smoothly all that in this ought to uh domains and so let me show you what this gives us
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first of all we can for example modify soft
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commercially available uh available come a commodity polymers
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so that they become what is called thermoplastic estimates these are the
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last summer's rubbers that can be processed from lowell disgusted emails
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but at the same time they're actually reinforced by these uh another five girls that have
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a short incorporated melting transition in this way we obtain alice the mess that
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can be processed from the note that have high operating temperatures hi alice
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this c. d. and a and a good mechanical properties overall
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if we do it slightly differently we can use the exact same approach to achieve a
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lesson as that have the exact opposite properties that are not elastic but highly dissipated
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they serve as high performance than thing materials because they can contain to independence types
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of super molecular networks that are formed spontaneously when crossing from the no
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and so these materials outperform commercial high performance damping materials in that they're
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highly dissipated show high moral bending racial combined with the high stiffness
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more recently we have tried to organise a succeeded in actually
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transferring the lessons learned in these last and the materials
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two thermoplastic uh high temperature poly a might we actually design defects into
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these poly a might so as to control the defect distribution
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the order this or the interface and the no no structure of the crystalline uh the main c. d.'s materials
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and it this way similar to spider so we've actually mount maintain commercial
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a commercially applicable materials with an unusual combination of high strength and stiffness
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drastically improve the today and so overall materials that optimised for a
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high fracture energy as may be interesting for some engineering application
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finally we've used that same idea of actually designing defects into material
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to make not a card map nana coatings that contain a mono they of carbon
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which however contains a control the amount of the fact sites that first of all sort of
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to anchor the card into a solid substrate and secondly control the softest gonna show that carmen that
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and so in this way but thank our model yes that may be interesting
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in terms of where resistant lubricated recordings with some anti corrosive properties
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so i was unable to show even at our lab we make and
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characterise molecules but we ought to use them to make novel materials
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that we character idling scales and we take care of applications properties and devices
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we do so with a dedicated team of chemists material scientists and justices
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and whereas i have not had time uh to actually explain to you all of my uh all of
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our findings in much detail i'll be happy to answer