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