In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Control Viscoelasticity of Polymer Networks with Crosslinks of Superposed Fast and Slow Dynamics, published in 2021-10-04, which mentions a compound: 7651-82-3, Name is Isoquinolin-6-ol, Molecular C9H7NO, COA of Formula: C9H7NO.
Depending on the dynamics of the crosslinks, polymer networks can have distinct bulk mech. behaviors, from viscous liquids to tough solids. Here, by means of designing a crosslink with variable mol. dynamics, we show the control of viscoelasticity of polymer networks in a broad range quant. The hexanoate-isoquinoline@cucurbit[7]uril (HIQ@CB[7]) crosslink exhibits in a combination of protonated and deprotonated states of similar association affinity but distinct mol. dynamics. The mol. property of this crosslink is contributed by linear combination of the parameters at the two states, which is precisely tuned by pH. Using this crosslink, we achieve the quant. control of viscoelasticity of quasi-ideal networks in 5 orders of magnitude, and we show the reversible control of mech. response, such as stiffness, strength and extensibility, of tough random polymer networks. This strategy offers a way to tailor the mech. properties of polymer networks at the mol. level and paves the way for engineering “”smart”” responsive materials.
Although many compounds look similar to this compound(7651-82-3)COA of Formula: C9H7NO, numerous studies have shown that this compound(SMILES:OC1=CC2=C(C=NC=C2)C=C1), has unique advantages. If you want to know more about similar compounds, you can read my other articles.
Reference:
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method