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  2. Cross-link - Wikipedia

    en.wikipedia.org/wiki/Cross-link

    In vulcanization, sulfur is the cross-linking agent. Its introduction changes rubber to a more rigid, durable material associated with car and bike tires. This process is often called sulfur curing. In most cases, cross-linking is irreversible, and the resulting thermosetting material will degrade or burn if heated, without melting. Chemical ...

  3. Isopeptide bond - Wikipedia

    en.wikipedia.org/wiki/Isopeptide_bond

    Another case of an isopeptide linking enzyme for structural purposes is the actin cross-linking domain (ACD) of the MARTX toxin protein generated by V. cholerae. While it has been shown that the ACD when performing the catalysis uses magnesium and ATP for the formation of the cross-links the specifics of the mechanism are uncertain.

  4. Carboxylation - Wikipedia

    en.wikipedia.org/wiki/Carboxylation

    Carboxylation is a chemical reaction in which a carboxylic acid is produced by treating a substrate with carbon dioxide. [1] The opposite reaction is decarboxylation.In chemistry, the term carbonation is sometimes used synonymously with carboxylation, especially when applied to the reaction of carbanionic reagents with CO 2.

  5. Crosslinking of DNA - Wikipedia

    en.wikipedia.org/wiki/Crosslinking_of_DNA

    Unlike other crosslinking agents, aldehyde-induced crosslinking is an intrinsically reversible process. NMR structure of these types of agents as interstrand crosslinks show that a 5'-GC adduct results in minor distortion to DNA, however a 5'-CG adduct destabilizes the helix and induces a bend and twist in the DNA.

  6. Polyacrylamide - Wikipedia

    en.wikipedia.org/wiki/Polyacrylamide

    Cross-linking can be introduced using N,N-methylenebisacrylamide. Some crosslinked materials are swellable but not soluble, i.e., they are hydrogels. Partial hydrolysis occurs at elevated temperatures in aqueous media, converting some amide substituents to carboxylates. This hydrolysis thus makes the polymer particularly hydrophilic.

  7. Curing (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Curing_(chemistry)

    Curing is a chemical process employed in polymer chemistry and process engineering that produces the toughening or hardening of a polymer material by cross-linking of polymer chains. [1] Even if it is strongly associated with the production of thermosetting polymers , the term "curing" can be used for all the processes where a solid product is ...

  8. Cross-linking - Wikipedia

    en.wikipedia.org/wiki/Cross-linking

    Cross-linking may refer to Cross-link, a chemical bond of one polymer chain to another; Corneal collagen cross-linking, a parasurgical treatment for corneal ectasia ...

  9. Cross-coupling reaction - Wikipedia

    en.wikipedia.org/wiki/Cross-coupling_reaction

    Permanent link; Page information; Cite this page; ... a cross-coupling reaction is a reaction where two different fragments are joined. Cross-couplings are a subset ...