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Home > Press > Malvern Zetasizer Nano is integral to Queen’s University’s polymer characterization lab

The Zetasizer Nano from Malvern Instruments
The Zetasizer Nano from Malvern Instruments

Abstract:
"The Zetasizer Nano ZS is an integral piece of equipment in our polymer characterization laboratory," said Daniel Krasznai, Department of Chemical Engineering, Queen's University, Kingston, Canada. "The most important features that the Zetasizer Nano ZS offers are rapidity, reproducibility, and a user-friendly interface."

Malvern Zetasizer Nano is integral to Queen’s University’s polymer characterization lab

Malvern, UK | Posted on August 28th, 2012

Daniel Krasznai's supervisor, Dr. Michael F. Cunningham, holds the Ontario Research Chair in Green Chemistry and Engineering at Queen's University. His team focuses on the synthesis of polymer colloids using a range of dispersed free-radical polymerization techniques. Together with Dr. Niels M.B. Smeets, and fellow collaborators Dr. Pascale Champagne and Dr. Timothy F.L. McKenna, they have recently published a paper in which they use the Zetasizer Nano ZS to characterize novel core-shell materials in pure water.

In this publication, Dr. Smeets' previous work on the rational design of hyperbranched synthetic polymers from Catalytic Chain Transfer Polymerization (CCTP) was extended to provide a core-shell copolymer consisting of a synthetic core decorated with a polysaccharide shell, allowing for easy dispersion in water. Resulting data from the Zetasizer Nano ZS was used to support the anticipated core-shell structure. Because these core-shell particles are discrete and covalently linked, there is no need for micellization to create a stable colloidal system in water.

"The Zetasizer Nano ZS is a useful instrument for us since the average particle size, particle size distribution, and zeta potential of our materials are key parameters in terms of understanding the fundamental issues surrounding particle creation and stabilization, as well as reaction kinetics and macromolecular architecture. A particularly unique application of the Zetasizer Nano ZS is that we can measure the average particle size and zeta potential of some of our samples using undiluted suspensions (of a few wt% in concentration)," continued Dr. Smeets.

The published paper; ‘Polysaccharide-stabilized core cross-linked polymer micelle analogues' by Krasznai et al, was published in Polymer Chemistry, Issue 4, 2012, and is available online through RSC Publishing.

The Zetasizer Nano ZS measures particle and molecule size from less than one nanometer up to several microns using dynamic light scattering, zeta potential and electrophoretic mobility using electrophoretic light scattering, and molecular weight using static light scattering. For further information on the Nano ZS and other instruments in the Zetasizer range, please visit: www.malvern.com/zetasizer

Malvern, Malvern Instruments and Zetasizer are registered trademarks of Malvern Instruments Ltd

####

About Malvern Instruments
Malvern Instruments is a market leader in measuring performance controlling material properties. These include particle size, particle shape, zeta potential, molecular weight, size and conformation, rheological properties and chemical identification. Malvern delivers the systems, support and expertise that ensure the analytical integrity and productivity needed to drive research, development and manufacturing.

Malvern’s measurement solutions for scientists, technologists and engineers advance continually through customer collaboration. Complementary materials characterization systems deliver inter-related measurements that reflect the complexities of particulates and disperse systems, nanomaterials and macromolecules. Combining intelligently implemented technologies with in-depth industry applications knowledge and support, Malvern provides customers with the competitive advantage they demand.

Headquartered in Malvern, UK, Malvern Instruments has subsidiary organizations in all major European markets, North America, China, Japan and Korea, a joint venture in India, a global distributor network and applications laboratories around the world.

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Contacts:
Trish Appleton
Kapler Communications
Phoenix House, Phoenix Park
Eaton Socon, Cambridgeshire, PE19 8EP, UK
Tel: +44 (0)1480 471059
Fax: +44 (0)1480 471069


USA contact:

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Malvern Instruments Inc.
117 Flanders Road
Westborough, MA 01581-1042 USA
Tel: +1 508 768 6400
Fax: +1 508 768 6403


Please send sales enquiries to:

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Malvern Instruments Ltd
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Malvern, Worcestershire WR14 1XZ UK
Tel: +44 (0) 1684 892456
Fax: +44 (0) 1684 892789

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