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conferenceseries.com
March 20-22, 2017 Orlando, USA
3rd International Conference on
Smart Materials & Structures
Volume 6, Issue 2 (Suppl) J Material Sci Eng
ISSN: 2169-0022 JME, an open access journal Smart Materials 2017
March 20-22, 2017
Supramolecular chemistry: Apowerful tool to elaborate colorful multi-stimuli responsive macromolecular
materials
Patrice Woisel
University of Lille, France
There is no doubt that the creation of high performance polymeric materials relies directly on our ability to manipulate these
smart materials in a controllable, predictable and orchestrated fashion from nano to macro-scale. Recently, architectures where
the individual polymer blocks are connected through supramolecular interactions such as hydrogen bonding, metal-ligand and
pseudorotaxane like interactions have received significant attention. The inherent features of the molecular recognition-driven self-
assembly confer significant advantages over their covalently linked brethren in terms of facilitating modularity and self-healing
properties. Moreover, through careful design smart polymeric systems have been developed with stimuli-responsive structures and
properties. Here, we report the successful engineering of new multi-stimuli responsive and colored macromolecular assemblies based
on well-defined functionalized polymer building blocks incorporating both electro-deficient (CBPQT4+) and electron-rich units
(tetrathiafulvalene, naphthalene) moieties. The architectures of these materials have been constructed by specifically holding together
complementary well-defined polymer building blocks (prepared by Controlled Radical Polymerization) with specially designed host/
guest motifs attached in specific locations on polymer backbones. The inherent reversibility of supramolecular architectures has
allowed on demand modular and tunable modification of structures and properties of materials. More particularly, we have exploited
the presence of colored CBPQT4+ based interactions to create smart micelles and hydrogels and reprogrammable supramolecular
temperature and pH sensors with memory function. An important practical aspect of these new functional materials is that all
relevant phenomena (self-assembly and disassembly processes, reading/reprogramming of temperature, memory function) have
an associated visible readout, thereby affording convenient and quantifiable systems with applications spanning the physical and
biological sciences.
Biography
Patrice Woisel has obtained his PhD in Organic Chemistry at the University of Lille, France in 1996 and was appointed as a Lecturer at the University of Dunkerque,
France. In 2007, he became a Professor at the National School of Engineering Chemistry (ENSCL), France. He currently leads a research group of around 10
people and has written over 90 publications in major international journals.
Patrice Woisel, J Material Sci Eng 2017, 6:2 (Suppl)