The reaction of polycondensation of phenol with formaldehyde.

Polycondensation is a process of polymer formation proceeding by the substitution mechanism, with the formation of low molecular weight by-products (for example, water) Phenol C6H5OH Formaldehyde HCOH nC6H5OH + nHCOH –H (+) -> [… – C6H4 (OH) – CH2 – .. .] n + nH2O This reaction produces phenol-formaldehyde resin.



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