15 / 29
Chemistry Education 2018
Journal of Organic & Inorganic Chemistry
ISSN: 2472-1123
Page 58
August 27-28, 2018
Zurich, Switzerland
8
th
Edition of International Conference on
Chemistry Education
and Research
C
onsidering the serious environmental pollution and energy
crisis resulted from human activities, light-activated
chemical reactions are of critical importance for the sustainable
development of mankind. In this regard, photocatalysis has
attracted great interest and researchers from academia, industry,
and government research laboratories have made remarkable
progress in this field, including solar fuels (CO2 capture, water
splitting, etc.), pollutants degradation, and chemical synthesis.
Recently,theconceptofvisible-lightphotoredoxcatalysishasbeen
successfully adopted in polymer synthesis upon soft conditions.
Organometallic compounds with excellent photochemical
properties (e.g. strong visible light absorption, long excited
state lifetimes) have a great potential as photoinitiators for free-
radical initiated [(meth)acrylates)] and cation initiated (epoxides
or vinyl ethers) polymerizations. Over the years, a series of
ruthenium-, iridium- or zinc- complexes have been successfully
developed and applied as photoinitiators. However, the search
for photocatalysts based on low-cost and non-toxic metals and
allowing efficient polymerization reactions at low concentrations
in the photocurable formulation remains today highly interesting
andchallenging. Parallel to this, anewfamily of photoinitiatorshas
emerged in 2018, i.e. the TADF photoinitiators that are specially
designed to exhibit long-living excited states and that can clearly
compete with the traditional metal-based photoinitiators. In this
presentation, recent advances in the design of metal-based and
metal-free photoinitiators will be presented. The recent results
obtained with these new families of photoinitiators pave the way
towards the development of a new generation of highly efficient,
low cost and non-toxic photoinitiators operating under visible
light and soft irradiation conditions, what is cruelly missing in
industries at present.
frederic.dumur@univ-amu.frVisible light photoinitiators of polymerization: Towards high
efficiency, low cost and non-toxic initiators
Frédéric Dumur
Aix Marseille University, France
J Org Inorg Chem 2018, Volume 4
DOI: 10.21767/2472-1123-C5-015