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