通过通用的质子化-水解机制从可获取的苝二胺酸盐获得的苝二酐水凝胶。
Perylene dianhydride hydrogels obtained from accessible perylene diamic acid salts by a versatile protonation-hydrolysis mechanism.
作者信息
Kwakernaak Markus C, Koel Marijn, van den Berg Peter J L, Strik Nicolaas, Jager Wolter F
机构信息
Department of Chemical Engineering, Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
Department of Radiation Science and Technology, Delft University of Technology Mekelweg 15 2629 JB Delft The Netherlands.
出版信息
RSC Adv. 2025 Apr 2;15(13):10183-10187. doi: 10.1039/d5ra00372e. eCollection 2025 Mar 28.
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.
苝二酐（PDA）水凝胶由极易获得的苝二胺酸盐（PDAA盐）通过通用的质子化-水解机制制成。最初，通过PDAA的π堆积形成非常弱的凝胶，随后水解产生更强的PDA水凝胶。水凝胶很容易在低至0.5 mM的浓度下制成，在1 mM时表现出约600 Pa的储能模量，并且会随着时间发生明显的脱水收缩。
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