Journal
NEW JOURNAL OF CHEMISTRY
Volume 24, Issue 7, Pages 493-499Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b002518f
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The interactions between PEG-based templates and metallic centres are key in the synthesis of mesostructured materials. In low-water-content media, strong chelation between metal centres and the non-ionic polar heads leads to polymer unfolding, and thus to worm-like phases. Larger quantities of water and acid added to the reaction bath weaken the coordination bonds that compose the hybrid interface. These resulting weak interactions (mainly hydrogen bonding) help the folding of the templating agents, and yield more ordered mesophases.
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