Delawder, Abigail O.; Natraj, Anusree; Colley, Nathan D.; Saak, Tiana; Greene, Angelique F.; Barnes, Jonathan C. published the artcile< Synthesis, self-assembly, and photomechanical actuator performance of a sequence-defined polyviologen crosslinker>, Safety of 1-(Chloromethyl)-4-vinylbenzene, the main research area is polyviologen crosslinker photochem reduction.
Although it is well known that viologen radical cations can self-assemble into stacks or complexes on account of radical-radical pairing interactions, it has only recently been demonstrated that reduction of main-chain polyviologens integrated into hydrogel networks can trigger actuation. In these earlier examples, hydrogels comprising oligoethylene glycol-based polyviologens and poly(ethylene glycol) were functionalized with terminal azide groups to prepare ‘click’-based gels. Here, we report a new structural design for the functional polyviologen that consists of main-chain viologen subunits separated by hexamethylene groups instead of glycols and is capped at each end with styrene groups. Activation of this viologen-based macrocrosslinker was achieved using chem.- and photoreduction methods and its ability to undergo intramol. chain-folding was monitored by absorption spectroscopy. Acrylate-based organogels and hydrogels were also prepared and a comparison was carried out to assess the actuator performance in each gel in terms of the rate of contraction and changes in stiffness.
Supramolecular Chemistry published new progress about Actuators. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Safety of 1-(Chloromethyl)-4-vinylbenzene.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics