Every year we host several national and international master students and a smaller selection of bachelor students and interns for projects that relate to our activities in fundamental and applied research. We support your stay in St. Gallen with an allowance and housing. The ideal length of a project work is around 6 months. Our open and international research environment as well as our good contacts to industry and ETH Zürich are assets, highly esteemed by students. We have many years of experience in hosting Master projects from many different countries and a very intercultural open spirit.

You can always send an unsolicited application with a CV and letter of interest to (manfred.heuberger-at-empa.ch), or, more specifically contact the responsible person as listed for the currently open project topics following below.

Manfred Heuberger

 

Currently open project topics:

Are you a motivated master student and looking for opportunities to challenge and strengthen skills in Polymer, organic and Material chemistry? Are you eager to do a master-project, while gaining valuable experience in a research project for industrial needs? The following projects are offered on immediate basis:

 

Internship or Master thesis 

• Project: Development of new recyclable and fire resistant vitrimers

The development of recyclable plastics is a key research focus in today’s world due to their environmental issues, and non-renewability concerns. Recently, vitrimeric materials have attracted great attention as an exciting class of renewable plastic due to their potential to exhibit strength, durability, and chemical resistance approaching that of traditional thermosets, while exhibiting end of life recyclability. This is due to their chemical structure, as vitrimers possess dynamic covalent crosslinks, which imparts stability while being reprocessable. The project that we proposed for this internship/Master thesis is to develop a new vitrimer material which offer simultaneous fire protection and full recyclability. Phosphorus based flame retardants with tailored physical and chemical properties are used as environmentally friendly additives for application in fibers, PU foams and wood based materials. In this project we aimed to develop a new vitrimer using phosphorus precursors and amine monomers which will be linked together using an unprecedented reactivity in vitrimers.

The project involves synthesis of monomers with heteroatoms (P and/or S) followed by preparation of different thermoset materials. You will also learn modern techniques for FR polymer characterization, while working in a professional and dynamic research group. Your competence in solid-state polymerization process is the basis for your success.

Supervisor: Dr. Cedric Hervieu, Dr. Sabyasachi Gaan

Your profile: You are the right person for this position if you are enthusiastic about plastic recycling and sustainability. Preferably, you:

• Currently a Master Student with a specialization in Organic / polymer chemistry / Material Sciences / composite material or in a related field;
• Are willing to learn new chemistry/ material science lab skills, as this is a relatively interdisciplinary field.
• Have good organization, prioritization, and communication skills and are able to work effectively and independently within a collaborative environment.

For further details please contact:  or sabyasachi.gaan@empa.ch

 

• Project: Up-recycling of polyethylene to valuable new material using catalytic methods

Supervisor: Dr. Wenyu Wu Klingler

Since polyethylene makes up one of the largest plastic sort produced globally, which has the widest application in packaging and can be collected after use, HDPE depolymerization can be an essential starting point for mitigating the severe impact of plastic waste on the global environment. As the treatment of plastic waste is an emerging global societal, economic and environmental problem, it requires innovative solutions to sort, degrade, and re-process these materials. In this Internship/Master Thesis, you will work on the development of novel chemical process to recycle and re-use polyethylene. Through innovative methods, we break down the polyethylene chain and produce added-value functional monomers for re-use. For this purpose you will work with other team members to discover catalytical way towards weaken the plastic chain and later on break it down. The members of chemistry additives in Advanced Fiber Lab will supervise the internship.

Your profile

You are the right person for this position if you are enthusiastic about plastic recycling and sustainability. Preferably, you:

• currently a Master Student with a specialization in Organic / polymer chemistry / Material Sciences / Catalytic Chemistry or in a related field;
• have good organizational, prioritization, and communication skills and are able to work effectively and independently within a collaborative environment.
• are willing to learn new chemistry/ material science lab skills, as this is a relatively interdisciplinary field.

contact:

 

Master Thesis 

• Project: Development of recyclable flame-retardant thermosets and the following coating and composite applications 

Supervisor: Dr. Wenyu Wu Klingler, Dr. Sabyasachi Gaan

The inception of epoxy thermosets with both reprocessability and flame retardancy delineates a new horizon in the field of polymer science, offering a material solution that is not only superior in safety but also in environmental friendliness. In this Master Thesis, you will work on the development of novel recyclable flame-retardant thermosets and the following coating and composite applications. Through innovative chemical methods, we will introduce phosphorous-based dynamic covalent bonds into the thermoset network and develop suitable methods for thermomechanical and chemical recycling. For this purpose, you will work with other team members to discover synthetic ways to obtain novel monomers based vitrimer thermoset and later on study the material fire-safe and recycling properties. The members of chemistry additives in Advanced Fiber Lab will supervise the master student.

Your profile

You are the right person for this position if you are enthusiastic about plastic recycling and sustainability. Preferably, you:

• currently a Master Student with a specialization in Organic / polymer chemistry / Material Sciences / Composite material or in a related field;
• are willing to learn new chemistry/ material science lab skills, as this is a relatively interdisciplinary field.
• have good organization, prioritization, and communication skills and are able to work effectively and independently within a collaborative environment.

for further details please contact: or sabyasachi.gaan@empa.ch

 

• Project: Innovative Light-activated Antimicrobial Coatings by Plasma Technology

Antimicrobial resistance poses a significant threat to public health, emphasizing the need for innovative strategies to combat bacterial infections. In this regard, it is estimated that in 2050 the current antibiotic will be ineffective, with more death due to infections than currently from cancer worldwide. To overcome these present & future issues, the antibacterial efficacy of reactive oxygen species (ROS) has become a focus of attention. ROS can be produced by antimicrobial materials just activated by light. However, this approach also requires the control of ROS delivery, for example, by tuning the properties of the surface of the material.

This project aims to investigate the fabrication and functionalization of antimicrobial materials on the nanoscale, with a focus on enhancing their efficacy and versatility for biomedical applications. The student will be involved in tasks such as (1) the fabrication of materials in the nanoscale using low-pressure plasma technology, (2) assessing the performance of these materials to produce ROS or (3) their antimicrobial properties. The interest of the student will be taken into account to define the detailed tasks of the project.

The main requirements are the following: (1) motivation, (2) background in natural sciences (biology, chemistry, physics, materials science, or related), and (3) good English communication.

Duration: between 4 and 6 months.
Starting date: to be discussed.

Contact: Dr. Paula Navascués,

 

• Project: Development of unsaturated polyester resin formulations with flame retardant properties for compositesSupervisor: Dr. Arvindh Sekar, Dr. Sabyasachi Gaan

In this Master Thesis, the candidate will work with us in collaboration with an external resin manufacturing company for their composite requirements. Currently at Empa, we are building up a library of flame retardant molecules with terminal acids and alcohol moieties, and we expect the help of the student to incorporate our flame retardants into resin formulations. Primarily, the student would work in an organic synthesis laboratory, performing polymerization/polycondensation reactions to obtain the oligomeric resins. He/She will have access to multiple characterization tools like GPC, NMR, elemental analyses and if shown sufficient progress, can also proceed to use these resins and cure them in molds with additives to obtain films which can be subject to other thermo-mechanical analyses.

 

Your profile

You are the perfect fit for this position if you:

• are currently a Master Student with experience working in an Organic / polymer chemistry / Material Sciences / Composite material lab setting.
• are willing to learn new chemistry/ material science lab skills, as this is a relatively interdisciplinary field.
• are able to think independently, and communicate well with others in the group/your supervisor.
• wish to experience what an industrial project expects from and offers to you.

for further details please contact 

 

• Melt-spun biopolyester fibers for biomedical and sustainable applications     

This master project or internship will focus on biocompatible liquid-filled biopolyester fibers for drug-delivery applications. Liquid filled fibers with different processing parameters and thus different diameters and core/sheath ratios will be produced using a continuous melt-spinning technique. Liquids of varying viscosities and eventually also a variety of drug or drug-simulating molecules are to be tested. Drug-release trials will be performed on the produced fibers. Furthermore, liquid filled fibers, that do not contain drug molecules, will be immersed in reservoirs containing, e.g. fluorescein, in order to study the diffusion behavior of such molecules into the liquid core. The latter will be tested in order to study if impregnation with drug molecules would also work. Finally, methods have to be developed to render the fibers responsive to different external triggers (e.g. mechanical, thermal, pH). A second part of the internship may focus on studying the structure of sustainable biopolyester monofilaments for other types of applications. The filaments will be studied using x-ray diffraction, Raman and infrared spectroscopy to identify how processing parameters affect the fiber structures. Special attention will be paid to mesophases and their correlation to mechanical properties of the fibers. Polarized Raman mapping is to be used in order to study the microstructure (mesophases, crystallinity, molecular alignment) of these filaments.

This work will be conducted at the EMPA institute (St. Gallen) in Switzerland under the supervision of E. Perret in the group of R. Hufenus.

Duration: Minimum 4 months.

Starting date: To be discussed.

Contact: Dr. Edith Perret 

 

• The Role of Ions in Plasma Polymer Deposition

Plasma deposition involves ionic and neutral radicals as film-forming species. This Master project or Internship (4-6 months) investigates their role in order to obtain functional plasma polymer films for adhesion promotion and biomaterials. You will work in one of the worldwide leading teams in this field using plasma reactors, plasma diagnostics and surface characterization methods. As your background materials science, engineering, chemistry, physics or similar is beneficial.

For details, please contact: