gates-pendantcycliccarbonate-2016.pdf (583.17 kB)
Pendant cyclic carbonate-polymer/Na-smectite nanocomposites via in situ intercalative polymerization and solution intercalation
journal contribution
posted on 2016-08-01, 00:00 authored by U Shaheen, T W Turney, K Saito, Will GatesWill Gates, A F PattiNanocomposites of sodium smectite with polyether- and polystyrene-containing pendant cyclic carbonates offer a novel approach to improving hydraulic barrier properties of Na-smectite liners to saline leachates. The cyclic carbonate polyethers were prepared by cationic ring opening polymerization of a cyclic carbonate-containing epoxide, whilst polystyrene polymers having pendant cyclic carbonate groups were obtained from radical photopolymerization of styrene. Na-smectite nanocomposites of these polymers were formed via clay in situ polymerization and solution intercalation methods. X-ray diffraction (XRD) and FT-IR analysis confirmed that the polyether can be intercalated within the layers of smectite via in situ as well as solution intercalation of the pre-formed polymer. The cyclic carbonate polyether nanocomposite was more resistant to leaching in 3M aqueous sodium chloride than its respective cyclic carbonate.
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Journal
Journal of polymer science part A: polymer chemistryVolume
54Issue
15Pagination
2421 - 2429Publisher
Wiley-BlackwellLocation
London, Eng.Publisher DOI
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ISSN
0887-624XeISSN
1099-0518Language
engPublication classification
C1 Refereed article in a scholarly journalCopyright notice
2016, Wiley Periodicals, IncUsage metrics
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