Phenolic resins.

Phenolic resins

Phenol formaldehyde resins or phenolic resins were the first commercial synthetic resins.
Phenolic resins (phenoplasts) are produced by Leo Baekeland.
This material is often called Bakelite.
Phenyl formaldehyde resins or phenolic resins are important class of polymers which are formed by condensation polymerisation of phenol and formaldehyde in acidic or alkaline medium.
Initially the monomers combine to form methylol phenol derivative depending upon phenol to formaldehyde ratio.

Synthesis of Phenolic resins step 1.
The phenol formaldehyde derivatives react among themselves or with phenol to give a linear polymer (novolac) or a high cross-linked polymer Bakelite.

Synthesis of Phenolic resins step 2.
The phenolic resins are widely used in plywood manufacture.
Other applications of phenolic resins include lacquers and varnishes, cutlery handles and toilet seats.
They have been widely used for production of molded products including billiard balls, as coatings and adhesives. Next

Uses of Phenolic resins.

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