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May 13-14, 2019 | Prague, Czech Republic
Chemistry and Medicinal Chemistry
9
th
World Congress on
Page 45
Asian Journal of Biomedical and Pharmaceutical Sciences | Volume 9
ISSN: 2249-622X
Marek W Urban
Clemson University, USA
Anisotropic stimuli-responsive polymeric nanoparticles and
copolymers with self-healing properties
T
his lecture will focus on the design, synthesis and
characterization of stimuli-responsive anisotropic
nanoparticles with various morphologies. Size- and
shape-tunable Janus as well as gibbous and inverse-
gibbous nanoparticles will be discussed in the context of
heterogeneous radical polymerization (HRP) developed
to synthesize ultra-high molecular weight amphiphilic
block copolymers. The second part will describe unique
self-healing properties of acrylic-based copolymers which
occurs in a narrow compositional range for preferentially
alternating with a random component copolymer topology
(alternating/random). This behavior is attributed to favorable
interchain van der Waals forces forming “key-and-lock”
interchain junctions. The use of van der Waals forces instead
of supramolecular or covalent rebonding, or encapsulated
reactants eliminates chemical and physical alterations and
enables multiple recovery upon mechanical damage without
external intervention. As a result of perturbation of van der
Waals forces resulting frommechanical damage the presence
of interdigitated alternating/random copolymer sequences
facilitate self-healing under ambient conditions.
Speaker Biography
Marek W Urban is the J.E. Sirrine Foundation Endowed Chair and
Professor of Materials Science and Engineering and Chemistry (courtesy)
Departments at Clemson University. He received MS in Chemistry from
Marquette University, PhD in Chemistry and Chemical Eng. Department
fromMichigan Technological University, and postdoctoral at CaseWestern
Reserve University. Prior to joining Clemson University, he was a professor,
Department Chair and director of polymer science programs at NDSU
and USM, where he also directed the Materials Research Science and
Engineering (MRSEC) as well as Industry/University Cooperative Research
(I/U CRC) Centers funded by the National Science Foundation. He is
the author of over 400 research publications and 11 patents, author of
four and editor of seven books. His research on self-healing polymers
and antimicrobial polymer surfaces has been featured by many media,
including NY Times, Forbes, BBC, NBC, Discovery, USA Today, Yahoo, ACS,
NSF and many others. He is the Fellow of American Chemical Society
PMSE Division, the Royal Society of Chemistry, American Institute of
Chemists, and recipient of numerous awards, most recently the Chemical
Pioneer Award from Chemical Heritage Foundation (2017) and University
Research,ScholarshipandArtisticAchievementAward(2018).Hisresearch
group current research efforts focus on the development of polymeric
materials and interfaces with ‘living-like’ functions. Of recent interests are
self-healing commodity polymers, new generations of stimuli-responsive
materials with adaptable, sensing, and signaling functions, including
colloidal nanoparticles and other nano-objects, as well as spectroscopic
imaging methods enabling molecular detection of stimuli-responsiveness.
e:
mareku@clemson.eduMarek W Urban, Asian J Biomed Pharmaceut Sci, Volume:9
DOI: 10.4066/2249-622X-C2-019
Notes: