Polymer Technology Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is V₂O₅ Aluminium triethyl combined with titanium tetrachloride Fe Ni V₂O₅ Aluminium triethyl combined with titanium tetrachloride Fe Ni ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Viscosity of a polymer solution or melt Decreases with increase in molecular weight Decreases with increase in temperature Does not vary with temperature rise Increases with increase in temperature Decreases with increase in molecular weight Decreases with increase in temperature Does not vary with temperature rise Increases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces Epoxy resin Phenolic resin Alkyd resin Polyamide Epoxy resin Phenolic resin Alkyd resin Polyamide ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymethyl methacrylate (PMMA) which is also known as perspex and is produced by bulk polymerisation of methyl methacrylate is not a __________ polymer. Linear Thermosetting Thermoplastic Glass like transparent Linear Thermosetting Thermoplastic Glass like transparent ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Peptizers like aromatic mercaptans (e.g. thiophenes) are added in rubber to Reduce its viscosity to permit easier processing Protect rubber goods from attack by oxygen & ozone present in the atmosphere Reduce the time of vulcanisation and quantity of vulcanising agent Increase its viscosity Reduce its viscosity to permit easier processing Protect rubber goods from attack by oxygen & ozone present in the atmosphere Reduce the time of vulcanisation and quantity of vulcanising agent Increase its viscosity ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Buna-S is also called Polyurathane SBR Teflon Bakelite Polyurathane SBR Teflon Bakelite ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS