baku state university master of chemistry balayeva ofeliya e-mail: ofeliya1989@inbox.ru oxidative...

Baku State UniversityBaku State UniversityMaster of ChemistryMaster of ChemistryBalayeva Ofeliya Balayeva Ofeliya E-mail: Ofeliya1989@inbox.ruE-mail: Ofeliya1989@inbox.ru

Oxidative chloro- phosphorylation reaction of nitrile-butadiene rubber (NBR) and characterization by the method of infrared spectroscopy

study.

*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: -200-300 ths.mol/q density : 0,943-0,986 g /ml glass transition temperature : -32 - (-55) ° C. The structure : amorphous.

With increasing of the amount of nitrile groups in molecules of With increasing of the amount of nitrile groups in molecules of nitrile- butadiene rubber, the solution decreases, glass transition nitrile- butadiene rubber, the solution decreases, glass transition temperature and the density increases. The rubber of NBR-26 is temperature and the density increases. The rubber of NBR-26 is widely used for production oil-gasoline-resistant rubbers and widely used for production oil-gasoline-resistant rubbers and electric conductor rubbers. 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

Type Molecular formula

Frequence cm-1

C-H Sp3 hybridization

R3C-H 2850-3000

P=O 950-1250

POO 1210-1282

OH Hydroxyl 2300-2700

P-OH 995-945

CN nitriles RCN 2280-2200