Shape memory polymers

You are looking for a reliable and trustworthy partner to carry out an R&D project? You have a business idea related to shape memory polymers and want to take it forward? You want parts of one of your products to deform when heated or that they move back and forth when the temperature changes?

Then you have come to the right place!

Every innovation starts with an idea. Nothing has driven us as much in recent years as the need to satisfy our customers and add value to society with our research. This has led us to continuously develop our knowledge and skills in chemistry and technology.

We recognized early on the potential that lies dormant in shape memory polymers. We would like to share our knowledge with you. It can be profitably applied in many industries!

If you need a new type of polymer, we select the appropriate raw materials for you and carry out the synthesis work. Our specialty is thermoplastic polyurethanes, whose properties we adjust to meet your needs. With a view to sustainable production, we select raw materials based on the data available to us in such a way that the carbon footprint is kept as low as possible.

Are you interested in the field of polymer processing? We are familiar with extrusion processes and use compounding to optimize properties. Are you looking for innovations in the foam sector? We will be happy to assist you with our reactive foaming processes.

Do you need assistance in additive manufacturing? In three-dimensional (3D) printing, we are experts in fused filament fabrication (FFF), also known as fused deposition modeling (FDM). We qualify polymer materials according to your requirements and produce 3D objects for you. With our expertise in so-called 4D printing, we would like to show you where the journey can go in the future. Here, we integrate the functions already in additive manufacturing, so that the printed objects react to heat. This saves valuable resources and speeds up implementation.

We are researching new polymer materials for the energy transformation and designing solutions for mobility, fire protection, product protection and soft robotics. We are very familiar with innovative assembly and disassembly concepts. Our functional integration processes can be used in applications such as personalized medical technology.

Together with our partners, we are developing "Programmable Materials", which have considerable potential as drivers for new technological developments. With our expertise, we contribute to various projects in the »FRAUNHOFER CLUSTER OF EXCELLENCE PROGRAMMABLE MATERIALS CPM«.

In short – shape memory polymers are our passion!

Polymer Synthesis

D. Schönfeld, D. Chalissery, F. Wenz, M. Specht,C. Eberl, T. Pretsch

Actuating Shape Memory Polymer for Thermoresponsive Soft Robotic Gripper and Programmable Materials. Molecules. (2021)

M. Walter, K. Lengsfeld, D. Borschewski, S. Albrecht, P. Kölsch, T. Pretsch, M. Krus, S. Lehmann-Brauns

Shape Memory Polymer Foam for Autonomous Climate-Adaptive Building Envelopes. Buildings. (2022)

Polymer Processing

M. Walter, F. Friess, M. Krus, S. M. H. Zolanvari, G. Grün, H. Kröber, T. Pretsch

Shape Memory Polymer Foam with Programmable Apertures. Polymers. (2020)

D. Schönfeld, S. Koss, N. Vohl, F. Friess, D. Drescher. T. Pretsch

Dual Stimuli-Responsive Orthodontic Aligners: An In Vitro Study. Materials. (2023)

D. Chalissery, T. Rümmler, F. Ziervogel, C. Eberl, T. Pretsch

Harnessing length and height changes in thermoresponsive programmable materials. Programmable Materials. (2023)

Virtual Component Design

D. Chalissery, T. Pretsch, S. Staub, H. Andrä

Additive Manufacturing of Information Carriers Based on Shape Memory Polyester Urethane. Polymers. (2019)

Additive Manufacturing

D. Schönfeld, D. Chalissery, F. Wenz, M. Specht, C. Eberl, T. Pretsch

Actuating Shape Memory Polymer for Thermoresponsive Soft Robotic Gripper and Programmable Materials. Molecules. (2021)

D. Chalissery, D. Schönfeld, M. Walter, I. Shklyar, H. Andrae, C. Schwörer, T. Amann, L. Weisheit, T. Pretsch

Highly Shrinkable Objects as Obtained from 4D Printing. Macromolecular Materials and Engineering. (2021)

D. Chalissery, D. Schönfeld, M. Walter, F. Ziervogel, T. Pretsch

Fused Filament Fabrication of Actuating Objects. Macromolecular Materials and Engineering. (2022)

Promotionsarbeit von Dilip Chalissery

Fused filament fabrication to manufacture three- and four-dimensional objects made of shape memory polymers. (2023)

Thermomechanical Treatment

N. Mirtschin, T. Pretsch

Designing temperature-memory effects in semicrystalline polyurethane. RSC Advances. (2015)

N. Mirtschin, T. Pretsch

Programming of One- and Two-Step Stress Recovery in a Poly(ester urethane). Polymers. (2017)

Further Information

T. Pretsch, in Smart Materials (Ed.: H. Boese), Vogel Communications Group, 2023, pp. 227-259.