Abstract
Herein, we demonstrate a facile methodology to synthesis a novel methacrylic phosphonic acid (PA)-functionalized polyhedral oligomeric silsesquioxanes (POSSs) via thiol-ene click reaction using octamercapto thiol-POSS and ethylene glycol methacrylate phosphate (EGMP) monomer. The presence of phosphonic acid moieties and POSS-cage structure in POSS-S-PA was confirmed by Fourier transform infrared (FT-IR) and nuclear magnetic resonance (1H, 29Si and 31P-NMR) analyses. Matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrum of POSS-S-PA acquired in a dithranol matrix, which has specifically designed for intractable polymeric materials. The observed characterization results signposted that novel organo-inorganic hybrid POSS-S-PA would be an efficacious material for fuel cells as a proton exchange membrane and high-temperature applications due to its thermal stability of 380 °C.
Highlights
In recent years, polyhedral oligomeric silsesquioxanes (POSSs), a family of nanostructured inorganic components with size tunability and functionality, have fascinated global research communities due to their wide range of potential applications in viscosity modifiers, catalysis, coating, drug-delivery vehicles, electronics, and renewable energy sources [1,2,3]
We report on the development of a novel type of methacrylic phosphonic acid-functionalized POSSs for fuel cells
From the 1 H NMR spectrum of POSS-SH, three signals are signals are observed at 0.72, 1.68, and 2.52 ppm due to methylene protons on the mercaptopropyl observed at 0.72, 1.68, and 2.52 ppm due to methylene protons on the mercaptopropyl arm and another arm and another triplet signal is exhibited at 1.34 ppm, which is attributed to thiol proton
Summary
K. Karuppasamy 1, *, K. Prasanna 2 , Dhanasekaran Vikraman 1 , Hyun-Seok Kim 1, *, A. Kathalingam 3 , Liviu Mitu 4 and Hee Woo Rhee 5, * Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Korea; Polymer Materials Lab, Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea
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