Transcript O.Balayeva – Oxidative chloro- phosphorylation

Oxidative chloro- phosphorylation
reaction of nitrile-butadiene rubber
(NBR) and characterization by the
method of infrared spectroscopy study.
Baku State University
Master of Chemistry
Balayeva Ofeliya
E-mail: [email protected]
*This research work were carried out by headed A.A.Azizov
with the participation of R.M.Alosmanov and İ.A.Buniatzade.
Special-purpose nitrile butadiene
rubber(NBR) chloro-phosphorylate
with the participation of oxygen.
Polymer obtained were characterized
by infrared spectroscopy.
Most polymer materials are good dielectrics with stable physical and
chemical properties. Modification of polymers with various inorganic
fillers is used for altering their mechanical, electric, and other operational
properties . Nano-sized metals have different properties from bulk metals
originating from nanocrystals size. Nanocrystals measure a few
nanometers containing few hundred atoms. In this way, nanomaterials
show unique properties (electronic, magnetic, structural) depending on
nano-size structure.
Nitrile butadiene rubber includes of special-purpose
synthetic rubbers. Nitrile butadiene rubber (NBR) prepare
from the radical polymerization of butadiene-1,3 with acrylic
acid in emulsified water. In depends the amount of
acrylonitrile there are NBR-18, NBR -26, NBR-110 branded
types of butadiene nitrile rubber. We have used NBR-26.
The molecular weight:
density :
glass transition temperature :
The structure :
-200-300 ths.mol/q
0,943-0,986 g /ml
-32 - (-55) ° C.
amorphous.
With increasing of the amount of nitrile groups in molecules of nitrile- butadiene
rubber, the solution decreases, glass transition temperature and the density
increases. The rubber of NBR-26 is widely used for production oil-gasolineresistant rubbers and electric conductor rubbers.
For solution of nitrile- butadiene rubber we used chloroform
(CHCl3). Rubber was solved in chloroform. For oxidative chloro
phosphorylation of nitrile butadiene rubber (NBR) PCl3 has been
added to over the intervals. After filtration the polymer was washed in
solution of acid and base and distillated water. Then polymer was
dried at room temperature.
The characterization of special-purpose synthetic nitrile- butadiene
rubber by the method of infrared spectroscopy study is more effective method.
Figure 1. The characterization by the method of infrared spectroscopy
study of the nitrile- butadiene rubber (NBR) polymer.
*IR-spectroscopy was taken was taken by G.M.Eyvazova in
Baku State University nano-research center by headed M. Muradov
Figure 2. The characterization by the method of infrared spectroscopy
study of the nitrile- butadiene rubber (NBR) polymer.
Figure 3. The characterization by the method of infrared spectroscopy
study of the phosphochlorizated NBR polymer.
*IR-spectroscopy was taken by G.M.Eyvazova in
Baku State University nano-research center by headed M. Muradov.
Figure 4. The characterization by the method of infrared spectroscopy
study of the phosphochlorizated NBR polymer.
Functional
group
C-H
Type
Sp3
hybridizatio
n
Molecular
formula
R3C-H
Frequence
cm-1
2850-3000
P=O
950-1250
POO
1210-1282
OH
Hydroxyl
2300-2700
P-OH
CN
995-945
nitriles
RCN
2280-2200