Article
  • Curing Study of the New Silane Monomers and Their IPNs
  • Firas Jameel Jabbar

  • Department of Pharmacy, Southern Technical University, Basrah, Iraq

  • 새로운 Silane 모노머와 IPN 중합체의 경화 연구
  • Reproduction, stored in a retrieval system, or transmitted in any form of any part of this publication is permitted only by written permission from the Polymer Society of Korea.

Abstract

Interpenetrating polymer networks (IPNs) that have silane resins as one of their components are industrially important due to their physical and chemical properties. The current study included preparation and characterization of two types of unsaturated silane monomers in order to prepare new types of IPNs with unsaturated polyesters (palatal). These monomers were characterized with Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance spectroscopy (1H NMR), and their molecular weights were determined by cryoscopy technique. The curing properties of the silane monomers and the IPNs were observed by differential scanning calorimetry (DSC), and several of thermal curing functions were determined, such as the initial curing temperature, optimum curing temperature, curing energy, activation energy and rate of curing. There was a significant decrease in the initial and maximum curing temperatures compared with the unsaturated polyester resin (palatal) due to the decrease in the activation energy from 105.4 to 77.3 ºC when the allyoxy silane monomer percentage was shifted from 5 to 20%. Meanwhile, the activation energy for the IPNs based on α-methyl-butenoxy silane decreased from 96.8 to 55.8 kJ/mol.


Keywords: silane monomer, interpenetrating polymer networks, curing, differential scanning calorimetry, palatal, cryoscopy.

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2020 Impact Factor : 0.493
  • Indexed in SCIE

This Article

  • 2021; 45(6): 857-864

    Published online Nov 25, 2021

  • 10.7317/pk.2021.45.6.857
  • Received on Apr 21, 2021
  • Revised on Jun 17, 2021
  • Accepted on Jun 21, 2021

Correspondence to

  • Firas Jameel Jabbar
  • Department of Pharmacy, Southern Technical University, Basrah, Iraq

  • E-mail: firas.alassadi@stu.edu.iq