Polymer Technology
Which of the following polymers shows the highest anti-tacking properties?

Phenolic resin
Melamine formaldehyde resin
Alkyd resin
Epoxy resin

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Polymer Technology
Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to

Reduce the time of vulcanisation and quantity of vulcanising agent
Increase its viscosity
Protect rubber goods from attack by oxygen & ozone present in the atmosphere
Reduce its viscosity to permit easier processing

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