纪念何炳林教授诞辰100周年学术报告
报告题目: Pickering Emulsions and Their Use as Templates for Microcapsules
报告人: Prof. Bert Klumperman
Dept. of Chemistry and Polymer Science, Stellenbosch University, South Africa
报告时间:2018年4月17日(周二)上午10:00
报告地点:南开大学 蒙民伟楼 201室
Abstract: Microcapsules and
microcages can conveniently be synthesized by the use of Pickering emulsions as
a template. Depending on the nature of the stabilizing particles (silica or
polymer) and the process of shell formation, a variety of different
morphologies can be obtained. In earlier work we reported on the formation of
microcapsules through the sintering of polystyrene microparticles on the
surface of inverse Pickering emulsion water droplets (Fig. A) and microcages
through partial fusion of polystyrene microparticles (Fig. B). More recently,
our work focused on the use of silica microparticles to stabilise the inverse
Pickering emulsions, and on ways to stabilise the structure into colloidosomes
that are able to entrap delicate matter such as live bacteria (Fig. C). Various
techniques to stabilise colloidosomes will be demonstrated and their scope and
limitations for different applications will be discussed.
Prof. Bert Klumperman obtained his PhD
degree in Polymer Chemistry at Eindhoven University of Technology, the
Netherlands in 1994. He joined Eindhoven
University of Technology as an Assistant Professor in 1995 and was promoted to
Associate Professor in 2002. From 1998 onwards he was involved in the
supervision of MSc and PhD students at Stellenbosch University. In 2006 he was
among the first twenty scientists who were awarded a South African Research
Chair by the National Research Foundation and the Department of Science and
Technology. In 2008 he was elected a Fellow of the Royal Society of South
Africa. In 2012 he was awarded a second doctorate at Stellenbosch University.
In 2017 he was elected a Fellow of the African Academy of Sciences. From July
2009 he is one of the Editors of Elseviers European Polymer Journal.
From 2015 he is the Editor-in-Chief of Transactions of the Royal Society of
South Africa. He has received many awards such as the Gold Medal of the
South African Chemical Institute (SACI) (2013), the title of Distinguished Professor
at Stellenbosch University (2014), the SASOL Chemistry Innovator of the Year
medal (2015), the pretigious National Science and Technology Forum (NSTF)
Lifetime Award (2016), and 2018 John FW
Herschel medal of the Royal Society of South Africa. So far, he has published more than 180 papers. His
current research interests are reversible deactivation radical polymerization
(RDRP) and Nanomedicine.