Skip to ContentSkip to Navigation
About us Latest news News News articles

Facile route for novel hyperbranched polyurea and applications thereof

06 May 2011

PhD ceremony: Mr. F. Xiang, 16.15 uur, Academiegebouw, Broerstraat 5, Groningen

Title: Facile route for novel hyperbranched polyurea and applicatons thereof

Promotor(s): prof. J.A. Loontjens

Faculty: Mathematics and Natural Sciences

This thesis is devoted to the studies of preparation, characterization and application of novel hyperbranched polyurethanes/polyureas (HBPUs). The novel AB2 monomers and corresponding HBPUs have been synthesized by using commercially available compounds, carbonyl biscaprolactam (CBC) and bishexamethylene triamine (BHTA).

The HBPUs comprise reactive blocked isocyanate groups at the end of all dangling polymer chains, enabling to make functionalized hyperbranched polymers. Moreover the focal point comprises a secondary amino group, which is also accessible for further modifications. By this way a number of derivates thereof have been prepared thereby incorporating other interesting physical and chemical properties. These HBPUs and their derivatives can be used for surface protection and/or functionalization. HBPUs decorated with hydrophilic moieties can self-assemble into micelles in water, which are promising for coating and drug delivery applications.

Last modified:13 March 2020 01.11 a.m.
printView this page in: Nederlands

More news

  • 07 August 2020

    Virus assembly has been filmed

    Scientists in Groningen and Madrid have managed to capture unique images of the first steps of virus assembly. By using a very fast scanning probe microscope, they were able to film how HIV proteins begin to form a virus. It appears that the virus...

  • 30 July 2020

    Restanten van een vergeten bolhoop ontdekt rond de Melkweg

    Restanten van een vergeten bolhoop ontdekt rond de Melkweg

  • 28 July 2020

    Populaties trekvissen wereldwijd met driekwart geslonken

    Een nieuw internationaal onderzoek laat zien dat bestanden van trekkende zoetwatervissen zoals zalm, paling en houting in de afgelopen vijftig jaar met 76% zijn afgenomen. In Europa is de afname met 93% het grootste. De trekvissen hebben het vooral...