Polymer Technology __________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR. Resilience Strength Percent elongation Freezing point Resilience Strength Percent elongation Freezing point ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ are produced by reacting polybasic acid (e.g. phthalic anhydride) with polyhydric alcohol (e.g., glycerol). Alkyd resins Amino resins Unsaturated polyester Saturated polyester Alkyd resins Amino resins Unsaturated polyester Saturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymethyl methacrylate (PMMA) which is also known as perspex and is produced by bulk polymerisation of methyl methacrylate is not a __________ polymer. Glass like transparent Linear Thermosetting Thermoplastic Glass like transparent Linear Thermosetting Thermoplastic 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 3:1 2:1 1:3 1:2 3:1 2:1 1:3 1:2 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is stretched into fibres? Bakelite Unsaturated polyester Isoprene Saturated polyester Bakelite Unsaturated polyester Isoprene Saturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their Magnitude of intermolecular forces Polymerisation mechanism Resistance to heat Molecular sizes Magnitude of intermolecular forces Polymerisation mechanism Resistance to heat Molecular sizes ANSWER DOWNLOAD EXAMIANS APP
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