**4. Conclusions**

New generation additives for polymers such as plasticizers and cross‐linking agents were synthesized in the catalytic hydrogenation process in the presence of Ni catalyst.

All hydrogenation products were analyzed using different analytical instrumental techniques such as GC/MS, ESI/MS, and spectroscopic techniques (e.g., 1 H NMR).

The new generation of plasticizers such as di(n‐ and isononyl)cyclohexane‐1,2‐dicarboxylates (DINCH components) are the new group of specific and safe plasticizers applied as the substitutes of di(alkyl) phthalates, especially di(2‐ethylhexyl) phthalate (DEHP) and di(n‐ and isononyl) phthalates in polymers.

The identification of these compounds permits us to determine both the structures of the main products and their by‐products as well. *Cis* and *trans* isomers of the cyclohexane‐1,2‐ dicarboxylates may be applied to the identification of some DINCH constituents extracted from polymers and also in the elucidation of their structures in the human metabolites. ESI/MS mode analysis of these compounds and the knowledge about their mass fragmenta‐ tion enable their detection, although without differentiation between individual *cis* and *trans* isomers. The obtained identification results concerning the determination of the indi‐ vidual chemical structures of some *cis* and *trans* di(n‐ and isoalkyl(C4–C9))cyclohexane‐1,2‐ dicarboxylates isomers (DINCH) maybe used in their determination of exposure and risk assessments.

Also, poly(amines) possessing usually more than two functional groups are very useful as cross‐linking agents and are used in the modification of physicochemical properties of the epoxy resins by the most effective chemicals.

The obtained results from the analysis of the final product of hydrogenation reaction of both *cis* and *trans* di(n‐ and isoalkyl(C4–C9))cyclohexane‐1,2‐dicarboxylates isomers (DINCH) and branched poly(amines) are useful in the optimization of processes of their production in an industrial scale.
