Perylene dianhydride hydrogels obtained from accessible perylene diamic acid salts by a versatile protonation–hydrolysis mechanism
Markus C. Kwakernaak (TU Delft - RST/Storage of Electrochemical Energy)
Marijn Koel (Student TU Delft)
Peter M. van den Berg (TU Delft - ImPhys/Medical Imaging)
Nicolaas Strik (Student TU Delft)
Wolter F. Jager (TU Delft - ChemE/Advanced Soft Matter)
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Abstract
Perylene dianhydride (PDA) hydrogels are made from highly accessible perylene diamic acid salts (PDAA salts) by a versatile protonation–hydrolysis mechanism. Very weak gels are formed initially by π-stacking of PDAAs and subsequent hydrolysis yields much stronger PDA hydrogels. Hydrogels are readily made at concentrations down to 0.5 mM, exhibit storage moduli around 600 Pa @ 1 mM and undergo significant syneresis in time.
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