Swelling Behavior of Novel Hydrogels Produced from Glucose-Based Ionic Monomers with Varying Cross-Linkers

Abstract

This work presents the synthesis of glucose-based vinyl imidazolium monomers and the hydrogels produced thereof. These novel semisynthetic, cationic hydrogels were prepared by radical polymerization with different types of commercial cross-linkers such as N,N′-methylenebis(acrylamide) or poly(ethylene glycol) diacrylate. Both the type and the amount of cross-linker were investigated as influencing factors with respect to the swelling degree. It was found that the cross-linker type majorly influences the swelling degree and long-term stability of the hydrogels. Last, the influence of different anions (e.g., halogens, acetate, and triflate) in the monomer molecule on the swelling properties of the hydrogels was investigated.

Structure‐Activity Relationships of Glucose‐based PdII‐Bis(NHC) Complexes in a Model Suzuki‐Miyaura Reaction

“…[13] These ionic liquids have been proven to exert a remarkable biocompatibility [13] and have also been applied in biocatalysis [16] and for hydrogel synthesis. [17] In this work we aim to use our established glucosyl imidazolium ionic liquids combined with the catalyst preparation route by Lin et al [11] to achieve the synthesis of novel complexes with only 4 overall steps in high total yields. Furthermore, we aim to prepare these glucose-based Pd IIbis(NHC) complexes with a high number of variations on the palladium, the imidazole and the carbohydrate itself, to study the influence of these variations on the catalytic activity in a Suzuki-Miyaura model reaction.…”