Polymer Technology Which of the following rubbers has the widest service temperature range (-75 to 275°C) ? Silicon rubber Silicone rubber Nitrile rubber Butyl rubber Silicon rubber Silicone rubber Nitrile rubber Butyl rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of formaldehyde with __________ does not produce phenolic resin. Para-cresol Resorcinol Phenol Melamine Para-cresol Resorcinol Phenol Melamine ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resins (i.e., epoxide polymers) Are cross-linked polymers only Contain an epoxy group ( ##### ) at the ends of the polymer Use emulsion polymerisation methods Are made by addition polymerisation reaction only Are cross-linked polymers only Contain an epoxy group ( ##### ) at the ends of the polymer Use emulsion polymerisation methods Are made by addition polymerisation reaction only ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance. Polycarbonate Polyurathane Polysulphone Polyester Polycarbonate Polyurathane Polysulphone Polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl acetate is never used for making All of these Adhesives Fibres Moulded articles All of these Adhesives Fibres Moulded articles ANSWER DOWNLOAD EXAMIANS APP
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