P. Ligenfert2, A. Murcia2, J.C. González3, Í. Canales4, J. M. López4 .

Research: J. Cámpora1, P. Palma1,

Teacher: A.M.Naz1, 3, 1Instituto Investigaciones Químicas-CSIC (Isla de la Cartuja, Sevilla)

2I.E.S. Ítaca, C/ Cristina Hoyos s/n Tomares 41940 (Tomares, Sevilla)3I.E.S. Martín Rivero, C/ Fernando de los Ríos,1 29400 (Ronda, Málaga)4I.E.S. Juan Ciudad Duarte, C/ San Pedro s/n 41930 (Bormujos, Sevilla)

4 USES OF PLASTIC

Depending on the catalyst and the metal used in the polymerization, the design of the

catalyst’s structure, the presence of a cocatalyst, the monomer and the pressure and

temperature conditions, plastics are used for many things. We prepared a “polimeroteca”

to develop of 2ª investigation

CONCLUSIONS 1ª INVESTIGATION:

a) Graphics of polymerization: Constant decrease

b) Activity of catalyst: very high

c) Infrarred spectrum: The polymer´s PE

A) OBJECTIVE:

Knowing the cycle of plastic, such

as synthesis, the characterization,

the use of plastics until they are

finally recycled.

Thanks to our teacher,

A. Marcos Naz, and our

researchers, Juan

Cámpora and Pilar

Palma, our families, and

our schools

headmasters

2 POLYMERIZATION:

This is the process where monomers are

joined by a catalyst. It took place in a reactor,

with two bars pressure for fifteen minutes1 SYNTHESIS OF A

CATALYST

Catalysts are the responsibles

from polymerization, and they

are a mix between a metal

and another element. In this

case, it was use NiBr2, and

CH2Cl2 as solvent

3 CHARACTERIZATION:

It verify if we have obtained the

designed polymer. It was taken

a little sample of a polymer and

it was analyzed by infrared

spectrum. This is the result.

5 SEPARATION

And finally, it is possible to

separate plastics by some

physical methods, cheking

its ignition, solubility or

smell

WEIGHT OF PE =

2,008 g

As we can see, there

are three

charasteristics signals

in 2900 cm-1, 1460

cm-1 and 725 cm-1.

Only connection C-H

and C-C

LIVING IN THE AGE

OF THE PLASTICS

The plastic ones are synthetic polymers. They qualify according to his internal composition.

An example of thermoplastic it is the polyethylene (PE) that is formed of the union of

monómeros of ethylene.

B) INTRODUCTION AND THEORETICAL FOUNDATIONS

:

C) METODOLOGY 1ª INVESTIGATION:

SYNTHESIS AND CHARACTERIZATION

OF POLYMERS

D) METODOLOGY 2ª INVESTIGATION:

DESIGN AND PRACTICE APPLICATION

OF A METHOD OF PLASTICS

IDENTIFICATION BY PHYSICAL

PROCEDURE.

CONCLUSIONS 2ª

INVESTIGATION:

If the plastic ones

are correctly

separated and

recyclings would

not be eliminated

(in dumps or

incinerated). With

the method that we

have designed,

almost they all can

return to the cycle

Inyection catalyst

bar

End

time

RESULTS AND ANALYSIS:

RESULTS AND ANALYSIS:

THE CYCLE OF

POLYMERS