[Music]
the ecology you had to see in the
news the many calls from
scientists as a signed communiqué
by fifteen thousand of them who shoot
the alarm bell on what we
subject the earth these calls to
multiply most saying that this is
already too late that the point of no
back and already you these communications
are paramount and I am a signatory
some of them but
today I will share you
the other side this side who are trying to
make small efforts not small
not that of heavy industry
I have always had an affinity with
nature appreciated her beauty the feeling
freedom it provides
and this since my youngest age I have good
grown in Auvergne also we will say that
I did not have much choice and it did not
not too much changed now except that I
I’m sure a little faster between
both I studied and as
everyone I tried to find the
way that I found my way and I
am launched in the field that appears the
closer to the concerns
environmental chemistry must confess
whether it’s me or chemistry it’s scary and
he does not really think about the
nature either but chemistry is
also all the progress all the comfort of
modern life
everything we use every day
and based from near and far at the
china of the coup I started in the
area that appears again the
closer with nature the domain
polymers
I see that some do not know what
that it is but I also see that
some make funny faces
because yes the polymers include the
plastics but not just there by
definition a polymer is a
sequence of molecules that
interlock with each other
a bit like lego it
so there are polymers of all
kinds and some that are natural in
more just now when you go out
of the building I invite you to watch
your feet
by chance you may see
the grass this hall herb is composed
at 20% of a polymer the cellulose that
it itself is composed of molecules of
glucose
then you will tell me why not
use the polymers that are already
present in nature we already do it
with cellulose for example for the
paper but as soon as the word make
more resistant materials
it quickly becomes complicated and it’s my
goal I want to create the polymer that
will fly into the rockets tomorrow and who
will have a minimal impact on
the environment
ladies and gentlemen i wish you
Welcome aboard a number
destination from the land and from
of March kindly attach your
belts for re-entry
atmospheric and wish you a
nice trip our speed is
currently 28 more per hour and the
outside temperature and 2 celsius
you may hear that in
a few dozen years
but if you listen well to the
captain it heats the adorent
2000 degrees Celsius
the shuttle has interest in being well protected
otherwise you will see a beautiful star
happily shooting there are materials
specially designed for that in
the aerospace the heat shield
you can see it as a big
shell
I pass you the details on all his
composition but I would like you
hold one thing in there is what
is called ablative resin and
it’s on this compound
the ablative resin that I’m looking for
is currently produced from
compounds that are carcinogens that I
is trying to replace with a polymer
biosourced ie from
renewable resources and the appearance
biobased is not the only one to take
into account to create a polymer that has
a minimum impact on the environment
it would be a shame to create a polymer
100 % from renewable resources
but which is toxic
and if I tell you about it it’s not
by chance
that’s what I unfortunately
arrive in my research good the good
side is that I can boast of having
created a poisonous biosourced but I you
ensures it’s a real headache because it
I need to create a molecule that is
able to react on it even for
to form the polymer but which is not
reactive on living things
it’s a bit like asking me
to create a pesticide that is not
dangerous for the man and the side of
toxic is not the only aspect to
take into account to create a material
really sustainable there are plenty
others like consumption
energy or waste generation and
all these questions make me almost
forget the most important is what the
polymer it will do its job well if
I’m not even able to protect
a fly I ‘ll be happy with
my own polymer but well imagine
that I can develop the polymer
will take twenty years to get
materializes in industrial products 20
years so you think that companies
are going to embark on this crusade just
because a molecule is suspected
to be carcinogenic
while they have something that
works very well since the 50s
it’s as if there are ten
of years I had said to myself I suspect my
diesel car to reject a lot of
microparticles I’m going to change for a
electric car
it costs three times more I do not
can not do long distances with
and I do not even deny the recharge is
everywhere among us ever I would have
changed car
but the question it brings is
rather what would have made me
car change at the time two things
if I do not have a choice because
diesel vehicles become banned or
if does the second
if having a vehicle
eq trick makes me earn money by
compared to a diesel vehicle and that’s
exactly the same with a
company if I do not have a choice
that’s what’s happening right now
in the chemical industry with the
reach regulation that was put in place
by the european union
the purpose to control and regulate the products
chemicals circulating in europe
the efficiency 22000 molecules recorded
48 molecules with restrictions if
important that they are almost
prohibited 534 molecules restricted in
their use and at least a doctorate
to create mine because yes ecology
create jobs and for the me side
saves money it’s us who
orient market
if demand decreases production
will be more profitable for the company
she will have no choice but to
refocus on what we are looking for
how to delete a product or
find alternatives that we
agree there is an example that one
can easily take the life of all
days plastic bags for use
unique
they are now banned from
many years in France but you
can always cross bags based
of starch that are bio sourced and
biodegradable because they come
different biobased which means
from renewable resources and
biodegradable which means degrading
the note in nature but at one
actually need plastic bags do not
would it not suffice to use bags made of
washable fabric for example I think
it’s a reasoning that we should
have for all the materials in at one
really need
no, so we part with it is it vital and
pollutants so so let’s find some
alternatives but it is true that for
more technical uses like
in aerospace it’s a lot more
hard to find solutions that
hold the road easily and this
is very expensive so it is necessary
that the impulse is given by
more powerful organisms like the union
European you remember the
reach regulation
he did not arrive by slamming
fingers it took ten years to put it
in place
it makes me think that it makes
now a year and a half that I have
started working and so the first
work that I did and
seek durable solutions for
heavy industry
at the very beginning I told myself that he had to
already existed a lot of things that I was going
just bring some bricks on a
wall that is already well underway but in
not at all the current research
is only laying foundations
which is solid and if you have
followed
you know now that the
development of a material is long it
It is therefore necessary to take
global decisions quickly at this
title you’ve already heard of the
hole in the ozone layer
last week I chatted with a
Australian doctoral student and he told me that
the sun is much more powerful
at home I wondered why
to all the same sun no the answer is
found in the thickness of the layer
of ozone as she was attacked she
is thinner and there are more rays
ultraviolet light that gets inside
result two out of three Australian
develop skin cancer at
during their lives two-thirds of the
population
fortunately there are some measures have been
taken today to avoid the
total destruction of the ozone layer
but it was not easy
scientists have alerted since 1973 that
the gas-based compounds the gases to
chlorinated and fluorinated compounds
present in the refrigerators are
responsible for the hole in the layer
ozone
it was not until 1987 for their
ban 14 years old and it took still
wait seven more years to see their
total disappearance of the chains of
production
in all 21 years will have been necessary
to remove substances that digs
the only protection that the
earth against radiation
ultraviolet this is the example that he
must also make decisions
international
I would now like to address a
last idea happens that he takes to heart
it’s not because I’m doing a
PhD in aerospace that I
seeks to understand the world that we
surrounded
rather because I’m looking for the
understand that I have come to do this
today I told you about the hole
in the ozone layer
it’s very far from my subject of
polymer research
bio-sourced is the curiosity that me
pushes to understand the information that
reach me but today with
all the data that happens there is
sometimes difficult to unravel the truth of
false
and for that I use something that
I do every day in my
searches I cross the information and
I check the sources
what is the legitimacy of a study
stipulating the non-toxicity of a product
funded by the company that the
product one must remain vigilant on the
provenance of the information everything is a
perspective question
and speaking of prospects there is
something that struck me as
researcher in my field polymers
I’m interested in all scales at
nanoscopic level where we observe the
atoms at the microscopic level where we
sees the bacteria and at the level
macroscopically what we see at the
line what’s amazing is that the
any modification that I make at
nanoscopic level on the atoms
visually changes the appearance of
polymer at the macroscopic level and
it’s all connected and it’s
exactly the same for the earth
smaller microorganisms
to the great terrestrial phenomena
it is these micro organisms that we
allow to exist today by their
billion small shares combined
so if we want to conserve the earth
as a house for humanity we
can act like these billions of
micro organisms by small actions
at all scales and for all those
who say that small actions do not
are useless these are not the
dinosaurs that saved life after
mass extinction
thank you
[Applause]
the ecology you had to see in the
news the many calls from
scientists as a signed communiqué
by fifteen thousand of them who shoot
the alarm bell on what we
subject the earth these calls to
multiply most saying that this is
already too late that the point of no
back and already you these communications
are paramount and I am a signatory
some of them but
today I will share you
the other side this side who are trying to
make small efforts not small
not that of heavy industry
I have always had an affinity with
nature appreciated her beauty the feeling
freedom it provides
and this since my youngest age I have good
grown in Auvergne also we will say that
I did not have much choice and it did not
not too much changed now except that I
I’m sure a little faster between
both I studied and as
everyone I tried to find the
way that I found my way and I
am launched in the field that appears the
closer to the concerns
environmental chemistry must confess
whether it’s me or chemistry it’s scary and
he does not really think about the
nature either but chemistry is
also all the progress all the comfort of
modern life
everything we use every day
and based from near and far at the
china of the coup I started in the
area that appears again the
closer with nature the domain
polymers
I see that some do not know what
that it is but I also see that
some make funny faces
because yes the polymers include the
plastics but not just there by
definition a polymer is a
sequence of molecules that
interlock with each other
a bit like lego it
so there are polymers of all
kinds and some that are natural in
more just now when you go out
of the building I invite you to watch
your feet
by chance you may see
the grass this hall herb is composed
at 20% of a polymer the cellulose that
it itself is composed of molecules of
glucose
then you will tell me why not
use the polymers that are already
present in nature we already do it
with cellulose for example for the
paper but as soon as the word make
more resistant materials
it quickly becomes complicated and it’s my
goal I want to create the polymer that
will fly into the rockets tomorrow and who
will have a minimal impact on
the environment
ladies and gentlemen i wish you
Welcome aboard a number
destination from the land and from
of March kindly attach your
belts for re-entry
atmospheric and wish you a
nice trip our speed is
currently 28 more per hour and the
outside temperature and 2 celsius
you may hear that in
a few dozen years
but if you listen well to the
captain it heats the adorent
2000 degrees Celsius
the shuttle has interest in being well protected
otherwise you will see a beautiful star
happily shooting there are materials
specially designed for that in
the aerospace the heat shield
you can see it as a big
shell
I pass you the details on all his
composition but I would like you
hold one thing in there is what
is called ablative resin and
it’s on this compound
the ablative resin that I’m looking for
is currently produced from
compounds that are carcinogens that I
is trying to replace with a polymer
biosourced ie from
renewable resources and the appearance
biobased is not the only one to take
into account to create a polymer that has
a minimum impact on the environment
it would be a shame to create a polymer
100 % from renewable resources
but which is toxic
and if I tell you about it it’s not
by chance
that’s what I unfortunately
arrive in my research good the good
side is that I can boast of having
created a poisonous biosourced but I you
ensures it’s a real headache because it
I need to create a molecule that is
able to react on it even for
to form the polymer but which is not
reactive on living things
it’s a bit like asking me
to create a pesticide that is not
dangerous for the man and the side of
toxic is not the only aspect to
take into account to create a material
really sustainable there are plenty
others like consumption
energy or waste generation and
all these questions make me almost
forget the most important is what the
polymer it will do its job well if
I’m not even able to protect
a fly I ‘ll be happy with
my own polymer but well imagine
that I can develop the polymer
will take twenty years to get
materializes in industrial products 20
years so you think that companies
are going to embark on this crusade just
because a molecule is suspected
to be carcinogenic
while they have something that
works very well since the 50s
it’s as if there are ten
of years I had said to myself I suspect my
diesel car to reject a lot of
microparticles I’m going to change for a
electric car
it costs three times more I do not
can not do long distances with
and I do not even deny the recharge is
everywhere among us ever I would have
changed car
but the question it brings is
rather what would have made me
car change at the time two things
if I do not have a choice because
diesel vehicles become banned or
if does the second
if having a vehicle
eq trick makes me earn money by
compared to a diesel vehicle and that’s
exactly the same with a
company if I do not have a choice
that’s what’s happening right now
in the chemical industry with the
reach regulation that was put in place
by the european union
the purpose to control and regulate the products
chemicals circulating in europe
the efficiency 22000 molecules recorded
48 molecules with restrictions if
important that they are almost
prohibited 534 molecules restricted in
their use and at least a doctorate
to create mine because yes ecology
create jobs and for the me side
saves money it’s us who
orient market
if demand decreases production
will be more profitable for the company
she will have no choice but to
refocus on what we are looking for
how to delete a product or
find alternatives that we
agree there is an example that one
can easily take the life of all
days plastic bags for use
unique
they are now banned from
many years in France but you
can always cross bags based
of starch that are bio sourced and
biodegradable because they come
different biobased which means
from renewable resources and
biodegradable which means degrading
the note in nature but at one
actually need plastic bags do not
would it not suffice to use bags made of
washable fabric for example I think
it’s a reasoning that we should
have for all the materials in at one
really need
no, so we part with it is it vital and
pollutants so so let’s find some
alternatives but it is true that for
more technical uses like
in aerospace it’s a lot more
hard to find solutions that
hold the road easily and this
is very expensive so it is necessary
that the impulse is given by
more powerful organisms like the union
European you remember the
reach regulation
he did not arrive by slamming
fingers it took ten years to put it
in place
it makes me think that it makes
now a year and a half that I have
started working and so the first
work that I did and
seek durable solutions for
heavy industry
at the very beginning I told myself that he had to
already existed a lot of things that I was going
just bring some bricks on a
wall that is already well underway but in
not at all the current research
is only laying foundations
which is solid and if you have
followed
you know now that the
development of a material is long it
It is therefore necessary to take
global decisions quickly at this
title you’ve already heard of the
hole in the ozone layer
last week I chatted with a
Australian doctoral student and he told me that
the sun is much more powerful
at home I wondered why
to all the same sun no the answer is
found in the thickness of the layer
of ozone as she was attacked she
is thinner and there are more rays
ultraviolet light that gets inside
result two out of three Australian
develop skin cancer at
during their lives two-thirds of the
population
fortunately there are some measures have been
taken today to avoid the
total destruction of the ozone layer
but it was not easy
scientists have alerted since 1973 that
the gas-based compounds the gases to
chlorinated and fluorinated compounds
present in the refrigerators are
responsible for the hole in the layer
ozone
it was not until 1987 for their
ban 14 years old and it took still
wait seven more years to see their
total disappearance of the chains of
production
in all 21 years will have been necessary
to remove substances that digs
the only protection that the
earth against radiation
ultraviolet this is the example that he
must also make decisions
international
I would now like to address a
last idea happens that he takes to heart
it’s not because I’m doing a
PhD in aerospace that I
seeks to understand the world that we
surrounded
rather because I’m looking for the
understand that I have come to do this
today I told you about the hole
in the ozone layer
it’s very far from my subject of
polymer research
bio-sourced is the curiosity that me
pushes to understand the information that
reach me but today with
all the data that happens there is
sometimes difficult to unravel the truth of
false
and for that I use something that
I do every day in my
searches I cross the information and
I check the sources
what is the legitimacy of a study
stipulating the non-toxicity of a product
funded by the company that the
product one must remain vigilant on the
provenance of the information everything is a
perspective question
and speaking of prospects there is
something that struck me as
researcher in my field polymers
I’m interested in all scales at
nanoscopic level where we observe the
atoms at the microscopic level where we
sees the bacteria and at the level
macroscopically what we see at the
line what’s amazing is that the
any modification that I make at
nanoscopic level on the atoms
visually changes the appearance of
polymer at the macroscopic level and
it’s all connected and it’s
exactly the same for the earth
smaller microorganisms
to the great terrestrial phenomena
it is these micro organisms that we
allow to exist today by their
billion small shares combined
so if we want to conserve the earth
as a house for humanity we
can act like these billions of
micro organisms by small actions
at all scales and for all those
who say that small actions do not
are useless these are not the
dinosaurs that saved life after
mass extinction
thank you
[Applause]
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