Open AccessSynthesis of Propylene Oxide – Styrene Copolymers
Publication year - 2021
Publication title -
letters in applied nanobioscience
Language(s) - English
Resource type - Journals
ISSN - 2284-6808
DOI - 10.33263/lianbs103.23892395
Subject(s) - copolymer , propylene oxide , cationic polymerization , polymer chemistry , monomer , styrene , catalysis , polymerization , ubbelohde viscometer , yield (engineering) , materials science , chemistry , montmorillonite , ethylene oxide , organic chemistry , polymer , intrinsic viscosity , metallurgy
The copolymerization of propylene oxide (PO) with styrene (St) catalyzed by Maghnite-H+ (Mag-H+) was investigated. Mag-H+, a nontoxic catalyst for cationic polymerization of vinylic and heterocyclic monomers, is a montmorillonite silicate sheet clay. This catalyst was prepared through a straight forward proton exchange process. It was found that Mag-H+ initiates the copolymerization in bulk at room temperature. Various techniques, including H1NMR, 13C-NMR, FT-IR spectroscopy, and Ubbelohde viscometer, were used to elucidate the resulting copolymers' structural characteristics. The effects of the amount of Mag-H+ and propylene oxide were studied. The yield of copolymerization depends on the amount of Mag-H+ used and the reaction time.