Polymer Technology Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used For film forming materials For fibre making For surface coating of automobiles & air crafts As plasticiser for PVC & nitrocellulose For film forming materials For fibre making For surface coating of automobiles & air crafts As plasticiser for PVC & nitrocellulose ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher Densities Hardness, rigidity & brittleness Melting point Tensile strength Densities Hardness, rigidity & brittleness Melting point Tensile strength ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Neoprene which is used for making shoe heels & belts is superior to natural rubber in its stability to aerial oxidation and resistance to oils & other solvents. The monomer used for making neoprene is Chlorophrene Chloroethane None of these Isoprene Chlorophrene Chloroethane None of these Isoprene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Zeigler - Natta catalyst (AlR₃ - AlCl₃) is used in the polymerisation of Styrene Vinyl chloride Propylene Vinyl acetate Styrene Vinyl chloride Propylene Vinyl acetate ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance. Polyester Polyurathane Polycarbonate Polysulphone Polyester Polyurathane Polycarbonate Polysulphone ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cellulose is the main contituent of most __________ fibres. Spandex Synthetic Acrylic Natural Spandex Synthetic Acrylic Natural ANSWER DOWNLOAD EXAMIANS APP
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