Value of the Data •The data in this article will be informative to synthesis of polymeric materials under effect of heterogeneous catalyst called maghnite (Algerian MMT). •By using these data, researchers can make comparisons with other polymerization like (cationic polymerization, anionic polymerization, radical polymerization, polymerization by emulsion …..) and comparisons between (homogenous catalyst and heterogeneous catalyst). •Strategy for this method of synthesis employed in this Data article can be used as a reference for future studies in the electronic domain. •The Data obtained in this work can be effectively applied for the synthesis of conductor polymers nanocomposites under effect of heterogeneous catalyst (Algerian-MMT) via in situ polymerization. •The data can be highlighted for further studies in development of better strategy for synthesis of conducting polymer especially for electronic and electrical domain.