Abstract
AbstractHydrogen‐bonding‐based reversible polymer networks are prepared from poly(2‐(dimethylamino ethyl)methacrylate)‐block‐poly(ethylene oxide)‐block‐poly(2‐(dimethylamino ethyl)methacrylate) (PDMAEMA‐co‐PEO‐co‐PDMAEMA) triblock copolymer blends with lignin. FTIR and DSC analyses reveal miscible blends. Fitting of the Tg/composition data using the Kwei equation produces significantly large positive q‐values: +275 for PDMAEMA and +413 PDMAEMA‐co‐PEO‐co‐PDMAEMA. In solution the blends self‐assemble into a hydrogen‐bonded polymer network with a strong dependence on blend composition and solution pH. 1H NMR spectra show that there is a clear core/corona transformation by adjust the solution pH.
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