Molecular Reinforcement of Transparent Materials with Acrylamide‐Modified Calix[4]arene As a Crosslinker

The synthesis of 5,11,17,23-amino-25,26,27,28-propoxycalix[4]arene (calix[4]amine, 4) starting from 5,11,17,23-nitro-25,26,27,28-propoxy-calix[4]arene (3) via microwave-assisted transfer hydrogenation is reported. Furthermore, the calix[4]amine (4) is functionalized with an acrylamide moiety. The swelling behavior in water, the influence on the glass transition temperature, and the shear modulus of a crosslinked N,N-dimethylacrylamide (NDA) polymer with 5,11,17,23-acrylamido-25,26,27,28-propoxycalix[4]arene (5) and EGDMA, respectively, are investigated.