Shape memory polymers

Are you looking for a reliable and trustworthy partner to carry out an R&D project? Do you have a business idea in connection with shape memory polymers (FGPs) and want to take it forward? Do you want parts of one of your products to deform when heated or to move back and forth when the temperature changes?

Then you've come to the right place!

Every innovation starts with an idea. In recent years, nothing has driven us as much as the need to satisfy our customers and create added value for society with our research. As a result, we have been able to continuously develop our knowledge and skills in chemistry and technology.

We recognized early on the potential that lies dormant in FGPs. We would like to share our knowledge with you. It can be used profitably 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 so 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 regarding polymeric foams? We are delighted to help you with our expertise in 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 tailor polymer materials to your requirements and produce 3D objects for you. With our expertise in so-called 4D printing we open our technology to future applications by integrating the shape memory functionality directly in the additive manufacturing process. This allows our objects to be thermoresponsive directly after manufacturing, saving valuable resources and speeding up the implementation process.

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)

D. Schönfeld, M. Walter, C. Teicht, M. Walter, T. Rümmler, T. Pretsch

Self-regulating thermal energy storage device. Smart Materials, Methods. (2024)

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)

Doctoral thesis by Dilip Chalissery

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

D. Chalissery, T. Pretsch

4D-Printed Tool for Compressing a Shape Memory Polyurethane Foam during Programming. Polymers. (2024)

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