Lightnews — Scholar-powered news

Reposted by Katharina Ehrmann

RSC Applied - Interfaces, Polymers @rscapplied.rsc.org · 14d

Discover the latest issue of RSC Applied Polymers featuring this cover article by @k-ehrmann.bsky.social et al. on 'Thermoplastic-like mechanical performance of heterogeneous photopolymers for additive manufacturing with tailored hyperbranched rubbers'
doi.org/10.1039/D5LP...

The image is split into 3 different sections, each with a different microscopy image. One is blue, one is purple and one is blue and green.

1 1

Katharina Ehrmann @k-ehrmann.bsky.social · 19d

Our Hot Article is now complimented by some nice Cover Art:
Front cover - RSC Applied Polymers (RSC Publishing) share.google/V9m8KLQCHbH7...

Check out the research behind these false-colour SEM-images here: pubs.rsc.org/en/content/a...

Front cover

share.google

1

Katharina Ehrmann @k-ehrmann.bsky.social · Sep 8

Fantastic collab with the Merna group at the University of Chemistry and Technology in Prague (UCT Prague)

Katharina Ehrmann @k-ehrmann.bsky.social · Sep 8

Paper 2: in-depth structure-property characterization of microphase-separated photopolymers with tensile curves just like real thermoplastic materials
pubs.rsc.org/en/content/a...

Thermoplastic-like mechanical performance of heterogeneous photopolymers for additive manufacturing with tailored hyperbranched rubbers

Conventional photopolymers used in light-based additive manufacturing are typically brittle materials with thermoset characteristics. Here we introduce a one-step synthesis of hyperbranched polyethyle...

pubs.rsc.org

1 1

Katharina Ehrmann @k-ehrmann.bsky.social · Sep 8

Paper 1: focus on metal-complex catalyzed epoxy-macromonomer synthesis, postfunctionalization strategies & 3D printing demonstration
www.sciencedirect.com/science/arti...

Epoxide-functionalized hyperbranched polyethylene and its applications in functional polymer synthesis and hot lithography photopolymer toughening

The copolymerization behaviour of four epoxide-containing ene-functionalized monomers with ethene using palladium α-diimine catalyst was investigated.…

www.sciencedirect.com

1

Katharina Ehrmann @k-ehrmann.bsky.social · Sep 8

Recently, @vmusil.bsky.social had a phenomenal week, getting not only one, but two (!!) first author papers accepted 🥳
Check out our new synthesis strategy for rubbery macromonomers and the resulting phenomenal microstructured 3D printed photopolymers! 🧵👇

@chemistry-tuw.bsky.social @tuwien.at

Thermoplastic-like mechanical performance of heterogeneous photopolymers for additive manufacturing with tailored hyperbranched rubbers

Conventional photopolymers used in light-based additive manufacturing are typically brittle materials with thermoset characteristics. Here we introduce a one-step synthesis of hyperbranched polyethyle...

pubs.rsc.org

1 2 3

Katharina Ehrmann @k-ehrmann.bsky.social · Aug 28

Now also out: Florian Mayer *illuminates* 💡 our research in this Cover Art!
pubs.rsc.org/en/content/a...

Front cover

pubs.rsc.org

1

Reposted by Katharina Ehrmann

Faculty of Technical Chemistry, TU Wien @chemistry-tuw.bsky.social · Aug 28

🧪“I design materials from molecular building blocks to real-world properties.” - @k-ehrmann.bsky.social, head of Additive Manufacturing. Interdisciplinary work with mechanical engineering enables advanced 3D printing. ⚙️What fascinates you about chemistry? #chemistry_tuw
youtube.com/shorts/IQ1DX...

youtube.com

1 1

Katharina Ehrmann @k-ehrmann.bsky.social · Jul 15

#FAIR: Curious about the first version prior to peer review or raw data? 🔎 We have uploaded a preprint to @chemrxiv.bsky.social (chemrxiv.org/engage/chemr...) and our processable data to #TUWienResearchData (researchdata.tuwien.ac.at/records/qjcp...) 🤓

Trioxanes as photodegradable motifs for additive manufacturing

We introduce trioxanes as a new motif for on-demand photolysis of 3D printed polymer networks via an orthogonal light source using photoacid generators (PAGs). The acid-induced degradation of otherwis...

chemrxiv.org

1 1 1

Katharina Ehrmann @k-ehrmann.bsky.social · Jul 15

Work led by Florian Mayer and supported by Dominik Laa at @chemistry-tuw.bsky.social @tuwien.at

1 1

Katharina Ehrmann @k-ehrmann.bsky.social · Jul 15

Did you know that trioxanes are acidically degradable? We have used this motif for the first time in polymers to make and break 3D printable photopolymer networks on demand with light.
Check out the early version here, published #openacess thanks to TU Wien Bibliothek:
pubs.rsc.org/en/content/a...

1 1 2

Katharina Ehrmann @k-ehrmann.bsky.social · Jun 17

Congratulations to our latest Dr.techn, wonderfully creative and hard-working Florian Mayer! It's been my plesure to work with you and you will be dearly missed.
Some of Florian's work on dual-cure/degradation systems published and underway: pubs.rsc.org/en/content/a...
chemrxiv.org/engage/chemr...

1

Katharina Ehrmann @k-ehrmann.bsky.social · May 27

We'll have a wonderful team at Kids University Vienna again, demonstration the inner workings of 3D printers in a hands-on workshop 👩‍🔬🧑‍🔬🧋🐻💡

kinderuni.at
"Der 3D Druck und seine Materialien" - Kurs 515
07.07.2025 09:30 - 12:30 | 10-12 Jahre

Kinderuni - kinderuni.at

An der KinderuniWien kannst du, wie an der richtigen Universität, bei Vorlesungen in großen Hörsälen oder Workshops in kleinen Gruppen, Spannendes erfahren, und interessante Wissenschafterinnen und Wissenschafter treffen.

kinderuni.at

3

Katharina Ehrmann @k-ehrmann.bsky.social · Mar 25

Great reflection - and only two-bite-sized 😉

Kelly Trivedy @kellytrivedy.bsky.social · Mar 25

New article is out today!

I discuss the risks of bite-sized content on our critical thinking skills.

🔗Reading link: lnkd.in/eWmdwczT
📧 Subscribe for free here to get all articles to your inbox when published: lnkd.in/emdfWi6Z

#criticalthinking #TheCriticalThinkingLoop #EduSky #AcademicSky #UKFE

Is bite-sized content slowly killing critical thinking - from reels to book summaries. KELLYTRIVEDY.SUBSTACK.COM

2

Katharina Ehrmann @k-ehrmann.bsky.social · Mar 14

Congrats to Selina for the best presentation award at BYPoS - a well-deserved recognition for all your hard work in the lab during your Diploma thesis on new star-shaped monomers for 3D printing!
@chemistry-tuw.bsky.social

2 5

Katharina Ehrmann @k-ehrmann.bsky.social · Mar 4

Thank you Materials Horizon Royal Society of Chemistry for the highlight! It's been fun to reflect on how my research interests have evolved and I look forward to reading this like a time capsule every 5-10 years and see which answers change and how! 👩‍🔬🏊‍♀️👩‍🎨
pubs.rsc.org/en/content/a...

Materials Horizons Emerging Investigator Series: Dr Katharina Ehrmann, Institute for Applied Synthetic Chemistry, Technische Universität Wien, Austria

Our Emerging Investigator Series features exceptional work by early-career researchers working in the field of materials science.

pubs.rsc.org

7

Katharina Ehrmann @k-ehrmann.bsky.social · Feb 20

Looking forward to making gummibears with 300+ potential future scientists next week - and this periodic graph will be nice for the highschool age group! Curious about our other food-themed experiments? Check out the program here: www.tuwien.at/tch/mitmachl...

1

Katharina Ehrmann @k-ehrmann.bsky.social · Feb 18

*entire team: Xingyu Wu, Ching Thye Gan, Benjamin Leuschel, Fred Parshley-Johnson, Christopher Barner-Kowollik
I've enjoyed every discussion in and beyond this project with you!

1

Katharina Ehrmann @k-ehrmann.bsky.social · Feb 18

I typically don't use 'finally' talking about research results - it takes as long as it takes - but this study is the joint effort of brillant @Xingyu94010651's and my postdoc time with @BarnerKowollik in AUS. I thank her and the entire team* for the exceptional collaboration!

1 1

Katharina Ehrmann @k-ehrmann.bsky.social · Feb 18

It's FINALLY out! We introduce MonoLISA, a new 3D printer using monochromatic light between 210 and 2400 nm, and a first photoresin to print degradable and non-degradable materials with two colours of light!
advanced.onlinelibrary.wiley.com/doi/10.1002/...

Two Material Properties from One Wavelength‐Orthogonal Photoresin Enabled by a Monochromatic Laser Integrated Stereolithographic Apparatus (Mono LISA)

A single object with dual properties – degradable and non-degradable – is fabricated in a single print simply by switching the printing colors. The advanced multi-material printing is enabled by the ...

advanced.onlinelibrary.wiley.com

2 1 9

Katharina Ehrmann @k-ehrmann.bsky.social · Jan 23

Haha - I take it you know them? 😀

1 1

Katharina Ehrmann @k-ehrmann.bsky.social · Jan 23

Time to focus and reflect on teaching methods today - including my favourite Austrian snack!! 😍

1 2

Katharina Ehrmann @k-ehrmann.bsky.social · Jan 22

Reading recommendation of @polykonkol.bsky.social and @polymerreaction.bsky.social's latest work: Temperature matters in photopolymerization! Thanks for spreading the word and giving this message a stage 👍

Tanja Junkers @polymerreaction.bsky.social · Jan 2

Ever wondered what happens with the activation energy of your #photopolymerization? We did a deep dive on #photoRAFT activation energies. With a bonus on RAFT equilibria information!

Great collab with @polykonkol.bsky.social!

pubs.acs.org/doi/full/10....

#ChemSky #Ozchem #RAFT

1 2

Reposted by Katharina Ehrmann

Daryl Yee @dryeeseeks.bsky.social · Nov 16

Here's my first go at bringing together everyone who does polymers + 3D printing!

Polymer chemistry, rheology, characterization, devices, etc. All are welcome!

Let me know if you want to be added to it

#chemsky

4 3 30

Katharina Ehrmann @k-ehrmann.bsky.social · Jan 13

An alle Lehrer*innen im wiener Umfeld: Kommt zur Jubiläumsfeier und erlebt die Magie (... oder doch einfach nur Naturgesetze?!) im 💫Mitmachlabor💥!👨‍🔬👩‍🔬🧑‍🔬 Infos und Anmeldung auf unserer Website: www.tuwien.at/tch/mitmachl...

1 5