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Novel Functional PolymersRadical PolymerizationCarbocationic PolymerizationNovel Topology PolymersPVC DegradationAmphiphilic Conetworks

 
Polymer Chemistry Research Group
 

 

Services

 

Based on our professional expertise, we are pleased to offer our services in the topics listed below. Our Department has a long history of successful contracts and cooperations bridging the gap between the academic and business sectors. Our former customers/partners include Shell, General Electric, BASF, Clariant and many other national and international firms, from small enterprises to multinational corporations.

If you would like to know more, please don't hesitate to contact us.

 

Polymer Synthesis

Synthesis of polyisobutylenes with well-defined molecular weight, exact chain-end functionality and low polydispersity (suitable for use as standard) on the scale of up to 100 g/batch.

 

Gel Permeation Chromatography (GPC)

For polymers soluble in tetrahydrofuran:

1. Estimating average molecular weights (Mn, Mw, Mz) and average intrinsic viscosities [h], and also their distributions. Based on universal calibration curves and using a double detector-system comprised of a Viscotek differential refractometer (RI) and a differential viscometer (DV) connected in parallel.

2. Estimating average molecular weights (Mn, Mw, Mz) based on light scattering analysis. Registered by a miniDawn detector supplied by Wyatt Technology.

3. Determining branching numbers in branched or hyperbranched polymers.

4. Determining refractive index increment (dn/dc) with an interferometric detector (Optilab DSP supplied by Wyatt Technology)

 

Amphiphilic Conetworks

These promising novel materials are synthesized only in a few specialized laboratories worldwide; our Department is one of the pioneering research groups in this field. On order or in R&D cooperation we are able to offer:

-   synthesis of various types of amphiphilic conetworks
- their extensive characterisation involving physical, chemical (and certain types of biological) assaying.