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Methods. 
Determination of the content of sulfhydryl groups in accordance with GOST 
12812. The arithmetic mean of two parallel determinations was taken as the test result, the 
discrepancy between which did not exceed 0.20% with a confidence level of 0.95%.
Differential thermogravimetric analyzes. The synthesized compounds were investigated by 
the method of differential thermogravimetric analysis on a derivatograf of the Paulik F, Paulik I, 
Erdey L. The method is based on the change in thermal effects when the compounds are heated in 
the temperature range of 293 - 793 K at a temperature rise rate of 2 - 5 K / min. The calculation of 
the effective kinetic parameters of the destruction of stabilized samples from the TGA data was 
carried out using the Freeman and Carroll method. The decomposition rate of the polymer is: 
𝑑𝑊/𝑑𝑡 = (𝐴𝑜/𝑅𝐻)𝑒 − 𝐸/𝑅𝑇𝑊𝑛
where RH is the heating rate, W is the polymer weight, Ao is the precondition factor, n is the 
effective mode of the reaction, and E is the activation energy of the polymer thermal destruction. 
From the graphical relationship in logarithmic coordinates, the equation n is found by the slope 
touch to find the order of the reaction, and by the segment cut along the ordinate - the energy of 
the effective activation of the thermal collapse. 
Results and Discussion. 
In this article, first of all, for the study of interpolymeric materials, 
high-pressure polyethene (PEVD), low-molecular-weight polyethene (NMPE) and secondary 
polyethene (VP) chlorosulfonated polyethene were obtained. [22; 23;24;25]. For the synthesis of 
chlorosulfonated polyethene (HSPE), high-pressure polyethene (LDPE), low molecular weight 
polyethene (LMPE) (produced at the Shurtan gas chemical plant) and secondary polyethene (VP) 
are used. The CSPE obtained from LDPE is called CSPE, from NMPE - NHSPE, and from 
secondary PE - VHSPE. Data on the content of chlorine and sulfur are shown in Figure 1.