---
type: "WebPage"
title: "Determining the glass transition temperature in the laboratory"
description: "You want to determine the glass transition temperature of your materials What is the glass transition of a material? The glass transition temperature (Tg) is an important parameter in materials science. It is the temperature at which a material such..."
resource: "https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/determining-the-glass-transition-temperature-in-the-laboratory/"
tags: ["EN", "pll_650aa74a760a0"]
timestamp: "2025-12-31T08:33:50Z"
published: "2024-08-29T12:59:35Z"
language: "en"
author: "bwa"
---

# Determining the glass transition temperature in the laboratory

## You want to determine the glass transition temperature of your materials

### What is the glass transition of a material?

The glass transition temperature (Tg) is an important parameter in materials science. It is the temperature at which a material such as a polymer or glass changes from a rigid, brittle state to a soft, rubbery state.

### Why determine the glass transition of a material?

The glass transition temperature of a material is an important parameter to take into account:

when designing polymer and glass materials: the Tg affects their mechanical properties and resistance at different temperatures. Determining the glass transition temperature enables manufacturers to choose the right material for a specific application.

to develop R&D materials

to assess a material's thermal stability. A material with a high Tg will be more resistant to high temperatures.

for understanding the mechanical properties of a material. By determining the Tg, we can find out how a material will behave when subjected to mechanical loads at different temperatures.

for quality control: manufacturers can ensure that their products meet the required specifications by measuring Tg.

## The FILAB laboratory carries out analyses to determine glass transition

The FILAB laboratory carries out glass transition analysis using the[differential thermal analysis (DTA)](https://filab.fr/en/our-technical-resources/differential-thermal-analysis-dta-in-the-laboratory.md) method. This analysis technique is used to measure the temperature variation between the sample under study and a reference during an exo- or endothermic reaction. This allows us to study phase transitions and diagrams and the glass transition, among other things.

DSC calorimetric analysis[(DSC analysis](https://filab.fr/en/our-technical-resources/laboratory-analysis-dsc-calorimetric.md)) can also be used to determine the phase transitions of a material:

## our services

[Thermal and thermogravimetric analyses](https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/laboratory-material-testing/laboratory-analysis-thermal-thermogravimetric/)

[Thermogravimetric analysis (TGA)](https://filab.fr/en/our-technical-resources/tga-tga-ftir-and-tga-ms-analysis-at-filab-laboratory.md)

[Thermal analysis of polymer materials](https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/laboratory-analysis-thermal-degradation-polymers.md)

[Analysis of thermal degradation of polymeric materials](https://filab.fr/en/our-services/our-analysis-services/polymer-materials-analysis-laboratory/laboratory-for-the-analysis-of-thermal-degradation-of-polymeric-materials.md)