1384840-61-2

Upstream product

• 157338-85-7 2,6-bis(2'-carboethoxyvinylamino)toluene 
• 766-82-5 1-ethynyl-3-methyl-benzene 
• 1384840-57-6 4,5-dibromo-9-methyl-1,8-diazaanthracene 
• 823-40-5 2,6-toluenediamine 
• 87330-35-6 1,4,6,9-tetrahydro-10-methylpyrido<3,2-g>quinoline-4,6-dione 

Relevant academic research and scientific papers

Solid-state photopolymerization of a shape-persistent macrocycle with two 1,8-diazaanthracene units in a single crystal

A macrocyclic monomer with two opposing 1,8-diazaanthracene units is polymerized in a single crystal by a photochemically induced [4 + 4] cycloaddition reaction between neighboring monomers in which the anthracene units are stacked face-to-face at the critical Schmidt distance. The severe structural changes associated with this are minimized by the monomer design, wherein the linkers between the two opposing photoreactive 1,8-diazaanthracene units are connected to the 4 and 5 positions of the latter, whose spatial positioning is changed the least during dimerization. This helps to keep the monomer's overall shape basically unchanged during the polymerization. The resulting new rigid-rod polymer is soluble in its protonated form, and after counterion exchange with a surfactant, it can be depolymerized back into monomer upon relatively mild thermal treatment (120 °C) in an organic solvent.