Question

Two uses glyptal and bakelite

Answer 1

$glyptal$
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It is a thermosetting plastic. It is obtained by condensation of ethylene glycol and phthalic acid or glycerol and phthalic acid. When its solution in a suitable solvent is evaporated, it leaves a tough but non-flexible film. It is, therefore, used in the manufacture of paints and lacquers




$bakelite$
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Bakelite is a cross-linked thermosetting polymer. Soft bakelites with low degree of polymerisation are used as bonding glue for laminated wooden planks, in the preparation of-varnishes and lacquers . many other products. Sulphonated bakelites are used as ion-exchange resins for softening of hard water.