Novel approaches for the preparation of silica-based zwitterionic hybrid copolymers
作者： Xinxing Cheng , Xingfa Zhang , Junsheng Liu , Tongwen Xu
DOI: 10.1016/J.EURPOLYMJ.2007.12.019
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摘要: Abstract Two novel routes for the preparation of silica-based zwitterionic hybrid copolymers were proposed. A series prepared by sulfonation phenyl groups and quaternary amination tertiary amine alternately. Both FT-IR 1 H NMR spectra confirm step products. TGA DrTGA analyses indicate that thermal stability these is higher than 400 °C. The determination degree reveals copolymer (c) from sulfonation–quarteramination (Route I) has minimal value; meanwhile anion-exchange capacity exhibits (e) quarteramination–sulfonation II) value. These findings demonstrate impact electrostatic effect on charge content ionic groups. MALDI-TOF mass exhibit decrease in charged can be ascribed to between molecular chains. surface SEM images some aggregated particles form clusters regions matrix, which also attributed interactions those
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