Archive:: American Journal of Polymer Science and Technology:: Science Publishing Group

Volume 8, Issue 2, June 2022

Preparation and Properties of Polyimide/Mesoporous SiO₂ Composite Films with Low Dielectric Constant

Zi-xiang Wang, Rong-rong Zheng, Lei Han, Shu-wu Chen, Hong-tao Wu, Jing-ying Wang, Xing-wei Li, Hongjing Liu, Liyan Wang

Issue: Volume 8, Issue 2, June 2022

Pages: 21-27

Received: 11 April 2022

Accepted: 4 May 2022

Published: 24 May 2022

DOI: 10.11648/j.ajpst.20220802.11

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Abstract: In this paper, mesoporous silica (NH₂-SiO₂) containing amino groups was firstly prepared using amino-ended hyperbranched polyamides as template agent and KH550 as surface treatment agent, and then polyimide/mesoporous NH₂-SiO₂ composites with low dielectric constant were successfully prepared by in situ polymerization method. The composite materias... Show More

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Valorization of the Pn-Pozzolana to the Synthesis of Fe-pn-Pozzolana Study - Application to the Synthesis of the Fe-Pn-SiO₂

Andry Tahina Rabeharitsara, Ando Princia Randriamalala, Nambinina Richard Randriana, Baholy Robijaona, Marie Hanitriniaina Ratsimba

Issue: Volume 8, Issue 2, June 2022

Pages: 28-37

Received: 12 July 2022

Accepted: 27 July 2022

Published: 5 August 2022

DOI: 10.11648/j.ajpst.20220802.12

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Abstract: The valorization of pozzolana into pn-pozzolana used as water softening was studied. This article treated particularly the valorization of the pn-pozzolana and pn-SiO₂ by adding iron-Fe atoms to give the Fe-pn-pozzolana and Fe-pn-SiO₂. Two synthesis procedures were used with the ironIIethoxide Fe(OEt)₂ as precursor material of the iron-Fe atoms dep... Show More

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