Posted in | News

Investigating Physical Properties of Different Polyacrylate Formulations

A new application report from Postnova Analytics demonstrates how Thermal Field-Flow Fractionation coupled to Multi Angle Light Scattering (TF3-MALS-RI) can be used to characterize different polyacrylate formulations.

Acrylic polymers (polyacrylates) are widely used in many industrial and consumer applications including paints and coatings. These polymers are often complex combinations of monomer units and the extent of cross-linking or branching determines the polymers’ physical properties and therefore determines which application(s) a given formulation will be most applicable for.

In Thermal Field-Flow Fractionation (TF3) - a separation field is established by applying a temperature gradient perpendicular to the channel. The top channel wall is heated and the bottom wall is cooled, driving polymers towards the cold wall by thermal diffusion. Smaller polymers diffuse into the faster flow profiles of the laminar channel flow and elute to detectors sooner than larger polymers.

Characterization of three different polyacrylate formulations was undertaken using a Postnova Analytics TF3-MALS-RI system enabling access to their molecular weight distributions as well as their radii of gyration. In addition, plotting the log of molecular weight (log M) versus the log of radius of gyration (log Rg) yields a conformation plot, which can be used to estimate the degree of polymer cross-linking.

From the data presented in this report, the authors show how TF3-MALS-RI is uniquely able to separate large polyacrylate molecules and provide precise molecular weight and Rg values. By comparison, most chromatography column-based separation techniques would filter out some or all polymer molecules this large, resulting in incorrect determination of their size and molecular weight distributions. Data is also shown that demonstrates how TF3-MALS can be used to elucidate the polymer structure, which can provide insight into why different formulations have different physical properties.

For a copy of this new application report please visit


Please use one of the following formats to cite this article in your essay, paper or report:

  • APA

    Postnova Analytics. (2020, July 22). Investigating Physical Properties of Different Polyacrylate Formulations. AZoM. Retrieved on July 23, 2024 from

  • MLA

    Postnova Analytics. "Investigating Physical Properties of Different Polyacrylate Formulations". AZoM. 23 July 2024. <>.

  • Chicago

    Postnova Analytics. "Investigating Physical Properties of Different Polyacrylate Formulations". AZoM. (accessed July 23, 2024).

  • Harvard

    Postnova Analytics. 2020. Investigating Physical Properties of Different Polyacrylate Formulations. AZoM, viewed 23 July 2024,

Tell Us What You Think

Do you have a review, update or anything you would like to add to this news story?

Leave your feedback
Your comment type

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.