Polymer Technology Buna-N is also called Neoprene Nitrile rubber Butyl rubber Thiokol Neoprene Nitrile rubber Butyl rubber Thiokol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cellulose acetate has very high film permeability among all the polymers of the order of 5000 gm/100 m². Which of the following polymers has the maximum film elongation (of the order of 100%) ? Polythene Cellulose acetate Water impermeable cellophane Teflon Polythene Cellulose acetate Water impermeable cellophane Teflon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The monomer of natural rubber is Both B and C DMT Isoprene 2 methyl-1-propene Both B and C DMT Isoprene 2 methyl-1-propene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at 1:3 3:1 1:2 2:1 1:3 3:1 1:2 2:1 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In condensation polymerisation as compared to addition polymerisation The monomers are unsaturated compounds The monomers contain two functional groups Generally only one monomer is involved No co-product is lost The monomers are unsaturated compounds The monomers contain two functional groups Generally only one monomer is involved No co-product is lost ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are Formed by addition polymerisation only Easily reshaped & reused Soluble in all organic solvents More brittle Formed by addition polymerisation only Easily reshaped & reused Soluble in all organic solvents More brittle ANSWER DOWNLOAD EXAMIANS APP
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