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Förslaget inkom 2003-09-08

Dendrimers as flocculation agents

OBS! ANSÖKNINGSTIDEN FÖR DETTA EXJOBB HAR LÖPT UT.
This Master's thesis project (exjobb) is to be carried out within YKI's Forest Products Section. YKI, Ytkemiska Institutet AB (Institute for Surface Chemistry) is an internationally leading research centre in applied surface and colloid chemistry. Knowledge about surface chemical phenomena e,g, cleaning, adhesion and surface modification is of importance for process and product development in different areas. YKI therefore works with most industrial sectors including chemical producers, engineering industries, forest products, plastics, paint, packaging, pharmaceutical, biotechnology and food industries. Our industrial partners range from multinational companies to domestic small and medium-sized enterprises (SMEs). YKI has 80 member companies worldwide. YKI is located in a research-intensive area on the campus of the technical university (KTH) in Stockholm, close to Stockholm University and the medical university Karolinska Institutet. See www.surfchem.kth.se for further information.

Dendrimers are multifunctional highly branched polymers with a roughly spherical shape. The functional groups are located at the (multiple) endgroups and can be of many different types. Depending on the type of endgroup, dendrimers have been considered for various applications. In this case the intention is to evaluate how dendrimers perform as flocculating agents as compared to traditional flocculants such as linear polyelectrolytes. The dendrimer end groups will therefore be negatively or positively charged groups (carboxylate or amine). The work will consist of characterising the flocculation behaviour of dendrimers by flocculating different model dispersions and comparing the results with traditional flocculants.

Praktisk information
Start: snarast enligt överenskommelse. Lämplig bakgrund för dig som söker är kemi/kemiteknik eller motsvarande.

Intresserad? Kontakta snarast:
Dr Svante Nilsson, YKI, tel. 08-790 99 60 / [email protected]

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