Added
value
to your
innovation

Added
value
to your
innovation

Services

PTG/e can be an extension of your in-house R&D. Whether it is contract research or simply the analysis of a material, you can count on us for professional support. We take a pragmatic approach, which translates into short communication lines internally and regular contact between our researchers and the customer. In this way we can monitor project progress and steer the process as needed.

Our services include organising postdoc-level open courses. And thanks to our large network of lecturers, we are also able to offer (in-house) courses tailored to your specific needs.

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Research & innovation

Need an experienced partner to complement your in-house R&D from time to time? For example when you are short of capacity or do not have the necessary expertise in house?
PTG/e is fully equipped to take on a variety of tasks.

Also for shorter term projects PTG/e is your partner.

Comparison of raw materials, material identification or a quick literature scan – these are just a few of the services that PTG/e can perform for you. 

Courses

With access to a wide network of (own) experts in many different areas, PTG/e is excellently placed to help you expand your knowledge of polymers. We are organizing customized company specific courses, as well as open PTN courses.

Publications

Bio-based aliphatic/aromatic poly(trimethylene furanoate/sebacate) random copolymers: Correlation between mechanical, gas barrier performances and compostability and copolymer

Agata Zubkiewicz, Anna Szymczyk, Rafaël J. Sablong, Michelina Soccio, Giulia Guidotti, Valentina Siracusa, Nadia Lotti
Polymer Degradation and Stability, 195,2022, 109800

Warm Season’s Greetings from PTG/e!

We would like to wish you all the best for 2022 and thank our customers for the cooperation and trust that has been given to us again over the past year.
Looking forward to strengthening our partnerships and developing our collaborations in the upcoming year, providing innovative and professional support.

Our laboratories will be closed December 25, 2021 till January 2, 2022.

With kind regards, Team PTG/e

Season's greetings PTGe

Identifying complex and unknown materials with TGA-IR-GC-MS ‘Hyphenation setup’

By combining the analysis techniques TGA, FT-IR and GC-MS via coupling of the devices one obtains a powerful analysis technique. With this TGA-IR-GC-MS ‘Hyphenation setup’ it is possible to identify complex and unknown materials.

PTG/e makes use of a TGA-IR-GC-MS ‘Hyphenation setup’ from PerkinElmer.
Some applications for this technique are:

  • The identification of additives, like plasticizers, in plastics
  • Determination of the primary components of a material
  • Analysis of unknown contaminations in a material, like fragrances or solvents

To characterize a material, it is first placed in the oven of the TGA, where it is heated with a programmed heating rate. During heating, weight loss can occur due to thermal decomposition or solvent evaporation. The evolved gases from these events are transferred via a transfer line to a heated chamber of the FT-IR. There, the gas is exposed to an infrared beam. The functional groups in the measured gas each respond differently to infrared radiation, which helps to identify the molecules.

TGA spectrum

IR spectrum

Following the FT-IR, the gas is transferred via another transfer line to be injected onto the column of the GC. Depending of the affinity of the injected gas with the column, the temperature of the column and the speed of the carrier gas, the injected gas has a certain retention time. Different components have a different retention time, which enables the GC to separate the individual components of the injected gas.

GC spectrum

An mass spectrometer (MS) is located at the end of the column. In the MS, the separated components are ionized and brought into an electric field. This field will accelerate the ionized components to a certain speed, depending on their mass and charge. The MS uses this principle to create a spectrum, which, together with the retention time of the GC, is unique for each component. Combining the data from FT-IR and GC-MS, the individual components of the evolved gases from TGA can be characterized.

MS spectrum

Aside from the fully hyphenated setup, it is also possible to use the individual analysis techniques, or a partially hyphenated setup, for example TGA – IR or TGA – GC-MS. The specific required setup will depend on what needs to be analyzed exactly.

Hyphenation setup

PerkinElmer equipment:
TGA 4000
FT-IR Frontier
Clarus 690 GC & SQ8T MS
RedShift Transferline

For more information about our equipment and techniques