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