prepration of two polymer bakalite
AIM:-------SYNTHESIS OF TWO POLYMERS
PREPARATION OF PHENOL FORMALDEHYDE RESIGN (BAKALITE)
PRINCIPLE:----ptepration of bakalite involves concrntration between phrnol and formaldehyde in presence of an acid catalist
CHEMICAL REQUIRE:-------glacial acitic acid, formaldehyde solution, phenol and Hcl
PROCEDURE:-----
1..Take 5ml of glacial acitic acid in a beaker
2...Add 2.5ml of formal dehyde solution in the beaker
3...Now add 2g of phenol into above solution after some heating
4..Finally add few dropes of Hcl into the solution within 5minutes a large mass of pink plastic like residue is formed
5..If no solid mass gets formed start heating the solution in water bath such that water bath does not start boiling
6... Keep on heating the solution unless there is solid mass formed in beaker with small amount of water present
7...Now filter the mixture with the help of funnel and filter the solid mass is bakelite
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