Polymer Sciences Open Access

Effect of physical crossliking on the thermal and mechanical properties of polymers

7^th Edition of International Conference on Polymer Science and Technology

April 12-13, 2021 Webinar

Ahalm Benkhelifa, Kamel Eddine Boudraa and Tewfik Bouchaour

University abou bekr belkaid Tlemcen, Algeria

Posters & Accepted Abstracts: Polym Sci

Abstract:

Interpenetrating polymer networks (IPNs) are a new class of polymer blends, in a network with at least one of the systems synthesized in the presence of the other. The main objective of this work was the elaboration and characterization of a novel sequential Homointerpenetrating polymer network (Homo-IPN) based on poly (isobornyl acrylate) Poly(IBOA), in the presence of a difunctional cross-linker 1,6-hexanedioldiacrylate (HDDA) and the photoinitiator 2-Hydroxy-2-methyl-1- phenylpropane-1 (Darocur 1173) to initiate the radical polymerization under UV radiations. The swelling kinetics of the polymer network was measured as function of the time at room temperature. The differential scanning calorimetry techniques allowed us to determine the thermo physical properties of the networks. The study of the networks by DMA was undertaken according to the temperature, in order to evaluate the modulus of elasticity (E') and of loss (E'') and the tan δ curve. It is evident that the storage modulus of the networks decreases drastically as the temperature increases and then the modulus value reaches a plateau after such a descent, in our work, homo-IPN has the highest storage modulus comparing with Poly IBOA network which shows improvement of the thermalmechanical properties of the networks.