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Introduction. 
Nowadays, developed interpolymers-copolymers have a homogeneous 
structure (polymer components do not precipitate into separate phases). However, signs of 
interphase separation were found in the study of interpolymer films by physical methods [1; 2; 3]. 
Obviously, micro aggregation of polymer fragments occurs due to the formation of a film from a 
solution, but the regions built from dissimilar fragments do not have a high extent, therefore the 
resulting polymer films retain their transparency [4; 5; 6].
The resulting chemical bonds in the processing of polymers improve the compatibility 
between the components [1; ten; eleven]. In the works of scientists, the process of the so-called 
"forced mixing" of two incompatible polymers was studied using the method of synthesis of 
interpolymers, i.e. polymacromolecular compounds formed during a chemical reaction in a 
solution of two polymers. This approach makes it possible to combine ready-made polymers in 
one macromolecule, the units of which cannot be combined at the stage of their synthesis [7; ;8; 
9; 10]. 
Chlorosulfonated polyethene rubber (CSPE) was mixed with chlorinated natural rubber 
(CNR) in various formulation ratios (CSPE / CNC: 100/0; 75/25; 50/50; 25/75; 0/100), 
maintaining the total amount of rubber powder waste (ODP) containing 50 parts permanently (per 
100 parts of rubber). Rheological, mechanical, dynamic and thermal ageing properties, as well as 
resistance to radiation, were used as characteristics of the mixtures. The amount of CNA in 
mixtures has a significant effect on the properties of the mixtures. Rubber compound KhSPE / 
KhNK / ORP (50/50/50) has a higher tensile strength compared to pure KhSPE and KhNK rubber 
even after irradiation or thermal ageing [11]. 
The rubber ionomer of the zinc salt of sulfonated natural rubbers (Zn-SNK) was 
synthesized and used as a new compatibilizer for mixtures of natural rubber (NR) and 
chlorosulfonated polyethene (CSPE). Epoxidized natural rubber (ENR) has also been used to 
prepare NR / CSPE blends. The effect of the ionomer concentration on the 50/50 melt viscosity 
(% w / w) of NC / HSPE mixtures at various constant shear rates was considered. It was found that 
the inclusion of an ionomer of increased viscosity during shear mixtures indicates an increase in 
the interfacial interaction between NC and CSPE. The maximum shear viscosity was observed 
when the ionomer was added to the mixture in an amount of 10% by weight of NA. Various 
mixtures were considered for tensile, rupture, oil resistance and morphology in the ratio of 
components 20/80 NC / CSPE with and without Zn-SNK and ENC on 10% wt of NC. A 
comparison was made between compatibilization mixtures. Compatibility mixtures have shown 
good results: 100% modulus of elasticity, tensile strength, tensile strength and oil resistance. 
Blends of compatibilization with Zn-SNK showed a higher level of improvement in modulus of 
elasticity, tensile strength than ENC. The tensile strength of mixtures with Zn-SNK and ENK 
compatibilizers in a ratio of 20/80 increased by 38 and 30% in comparison with the corresponding 
mixtures. In addition, the addition of the ionomer and ENC led to a decrease in the size domain of 
the dispersed NC phase and an improvement in the interfacial cohesion between NC and CSPE, 
which indicates good compatibility of the mixture. These results indicate that Zn-SNK is a new 
effective combiner for NC and CSPE mixtures. [12; 13; 14; 15; 16]. 
A new type of dynamic thermoplastic elastomers based on sulfochlorinated polyethene and 
low-density polyethene has been developed, which combine the advantages of composites of 
nitrile rubber polyolefins and polyolefins with ethylene-propylene rubber and are free from their 

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disadvantages. The composition takes place independently. Cross-stitching during processing. The 
specific features of the structure of the composite material associated with the formation of an 
intermediate layer at the interface were revealed. These materials are highly durable and resistant 
to heat, frost, oil and ozone [17; 18; 19; 20]. Interpolymers differ from block copolymers in that 
when two different macromolecules (blocks) interact, the addition of one macromolecule to 
another occurs not at the end functional groups, but at the functional groups located in the units of 
macromolecular chains [21; 22; 23; 24]. The reaction will take place in the zone of penetration of 
coils, which form soluble products - interpolymers.
When comparing the characteristics of the mechanical properties of interpolymers with the 
original polymers, interpolymers have an intermediate value between the characteristics, and in 
some compositions they surpass them. The impact strength of interpolymers increases especially 
in the area of compositions close to equimolar components (CSPE, PS and PVC and PA, 
fluoroplastics and CSPE). With the same composition, the strength properties of the obtained 
interpolymers are significantly higher than the same properties of mechanical mixtures of the 
initial polymers [25; 26;27]. 
Thus, obtaining interpolymers in an efficient way makes it possible to achieve 
compatibility of different polymers, which cannot be combined without chemical interaction. This 
compatibility of polymers can be called forced. Interpolymers can be considered as a separate class 
of polymers that have the characteristics of the original polymers and even improve these 
properties. The results of numerous studies show that improving the compatibility of different 
polymers can be achieved by several methods [20;27].