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This device combines a Windows Mobile 5 PDA with a quad-band GSM phone. Key features include a slide-out text keyboard, 802.11g Wi-Fi, EDGE, Bluetooth, speakerphone, and a miniSD memory card slot.

The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acs.iecr.9b00623. FTIR spectra of PAA or PI membranes; TGA curves of PI membranes; zeta-potential ...