Polymer Technology __________ are produced by reacting polybasic acid (e.g. phthalic anhydride) with polyhydric alcohol (e.g., glycerol). Alkyd resins Amino resins Saturated polyester Unsaturated polyester Alkyd resins Amino resins Saturated polyester Unsaturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cross linked polymers formed from bi-and trifuctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties. Brittleness Thermosetting Elastometric Thermoplastic Brittleness Thermosetting Elastometric Thermoplastic ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is generally not drawn into fibre? Unsaturated polyesters Polyacrylonitrile Polyamide Saturated polyesters Unsaturated polyesters Polyacrylonitrile Polyamide Saturated polyesters ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Buna-S is a __________ material. Plastic Fibrous Resinous Rubbery Plastic Fibrous Resinous Rubbery ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermoplastic resins usually Less brittle than thermosetting resins Can not be reclaimed from waste Remain hard as long as they are hot Permanent setting resins Less brittle than thermosetting resins Can not be reclaimed from waste Remain hard as long as they are hot Permanent setting resins ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is 7 kgf/cm² and 700°C 1 kgf/cm² (gage) and 70°C 7 kgf/cm² and 70 °C 1000 kgf/cm² and 100°C 7 kgf/cm² and 700°C 1 kgf/cm² (gage) and 70°C 7 kgf/cm² and 70 °C 1000 kgf/cm² and 100°C ANSWER DOWNLOAD EXAMIANS APP
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