• 317 Citations

Research output per year

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Personal profile


"The science and technology of polymers is beautiful and relevant. I get energy from sharing my polymer experience with motivated students, especially when we can apply it to advance the circular economy."

Research profile

As part-time professor in Physical Chemistry of Polymers Jaap den Doelder shares his industrial knowledge about structure, rheology and modeling of polymer materials. In his academic research he approaches the circular economy from a materials and technology point of view, in particular regarding bulk polymers PE and PP.

The central theme in his work is to start with the molecular aspect and couple this to macroscopic dynamics and properties. He often follows a mathematical approach, from statistical distributions of molar mass, calculated using a kinetic model, via constitutive models connecting force and deformation, to data-driven analyses of properties as a function of structure and processing. On the physical and mechanical technology side this touches with end-use properties, determined by the combined polymer topology and processing conditions. On the chemical technology side there is a touch point with the various ways to modify polymer structure, degree of polymerization, and topology through selection of catalyst, process, and monomers.

By thus analyzing the complete value chain from resources all the way to end products and recycling opportunities, Den Doelder aims for upcycling of polymers rather than downcycling. So that materials are made and used in a responsible manner, economically, environmentally and socially.

Academic background

Jaap den Doelder received his Master's degree in Applied Physics from Eindhoven University of Technology (TU/e) in 1994. He continued with a post-master PDEng education in Mathematics for Industry at the same university, which he completed in 1996. In 1999 he obtained a PhD in Applied Mathematics for his research on flow instabilities of polymers. This work was performed both at TU/e and Dow Chemical in Terneuzen. Since 1999 he has been working at Dow's R&D department in Terneuzen. After eight years at the Materials Science group of Core R&D he now works in Performance Plastics PE Product R&D. Den Doelder also worked for short periods at the Midland (Michigan) and Freeport (Texas) Dow locations. In 2011 he became an adjunct visiting professor at the PPD post master program at the TU/e. In 2016 this was extended to a part-time professorship with the Laboratory of Physical Chemistry.

Affiliated with

  • Dow Chemical

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Research Output

Processability predictions for mechanically recycled blends of linear polymers

van Gisbergen, J. & den Doelder, J., 1 Jan 2020, (Accepted/In press) In : Journal of Polymer Engineering.

Research output: Contribution to journalArticleAcademicpeer-review

  • Integrated kinetic Monte Carlo-structure-rheology model for solution copolymerization of ethylene and α-olefins

    Agarwal, U. & den Doelder, J., 8 Jan 2019, In : Macromolecules. 52, 1, p. 293-310 19 p.

    Research output: Contribution to journalArticleAcademicpeer-review

  • Compatibilization of polypropylene–polyethylene blends

    Vervoort, S., den Doelder, J., Tocha, E., Genoyer, J., Walton, K. L., Hu, Y., Munro, J. & Jeltsch, K., 11 Apr 2018, In : Polymer Engineering and Science. 58, 4, p. 460-465 6 p.

    Research output: Contribution to journalArticleAcademicpeer-review

  • 1 Citation (Scopus)


    den Doelder, C. F. J., 12 May 2017, Eindhoven: Technische Universiteit Eindhoven. 24 p.

    Research output: Book/ReportInaugural speechAcademic

    Open Access

    Compatibilization of polypropylene – polyethylene blends

    Vervoort, S., den Doelder, C. F. J., Tocha, E., Genoyer, J., Walton, K. L., Hu, Y., Munro, J. & Jeltsch, K., 22 Sep 2016, Proceedings of PMI 2016 – 7th bi-annual International Conference on Polymers and Moulds Innovations: 22-23 September 2016, Ghent (Belgium). p. 301-306 7 p.

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

  • Courses

    Press / Media

    Student theses

    Experimental and theoretical study of glottal flow during phonation

    Author: den Doelder, C., 31 Oct 1994

    Supervisor: Hirschberg, A. (Supervisor 1), van Hassel, R. (Supervisor 2), Hofmans, G. (Supervisor 2) & Wijnands, A. (External person) (Supervisor 2)

    Student thesis: Master


    Modeling the linear viscoelastic behavior of entangled linear and star polymer systems

    Author: Mandagi, N., 19 Dec 2008

    Supervisor: den Doelder, C. (Supervisor 1), Verbrugge, T. (External person) (Supervisor 2) & van de Ven, A. (Supervisor 2)

    Student thesis: Master


    Predicting the structure and processability of rigid post-consumer plastic waste

    Author: van Gisbergen, J., 30 Jan 2019

    Supervisor: den Doelder, J. (Supervisor 1), Tuinier, R. (Supervisor 2), Slot, H. (Supervisor 2) & Landman, J. (Supervisor 2)

    Student thesis: Master


    Structural modification of LDPE during high-temperature processing

    Author: Simons, J., 28 Nov 2018

    Supervisor: den Doelder, C. (. (Supervisor 1)

    Student thesis: Master