Polymer Technology Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance. Polysulphone Polyester Polycarbonate Polyurathane Polysulphone Polyester Polycarbonate Polyurathane ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Size range of polymer molecules varies from __________ metre. 10⁻¹ to 10⁻² 10⁻⁸ to 10⁻¹⁰ 10⁻² to 10⁻⁵ 10⁻⁴ to 10⁻⁷ 10⁻¹ to 10⁻² 10⁻⁸ to 10⁻¹⁰ 10⁻² to 10⁻⁵ 10⁻⁴ to 10⁻⁷ ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon-66 is manufactured from Dimethyl terephthalate (DMT) and ethylene glycol Caprolactum Adipic acid and hexamenthylene diamine Maleic anhydride and hexamethylene diamine Dimethyl terephthalate (DMT) and ethylene glycol Caprolactum Adipic acid and hexamenthylene diamine Maleic anhydride and hexamethylene diamine ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermocole is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten Saturated polyester Either B or C Polyurathane Polystyrene Saturated polyester Either B or C Polyurathane Polystyrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following natural bio polymers are formed as a result of polymerisation of amino-acids? Starch Proteins Cellulose Nucleic acids Starch Proteins Cellulose Nucleic acids 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
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