Polymer Technology Which of the following is not a condensation polymer? Bakelite None of these Polymethylmethacrylate (PMMA) Melamine polymer Bakelite None of these Polymethylmethacrylate (PMMA) Melamine polymer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymerisation process in which two or more monomers of chemically different nature take part is called Chain polymerisation None of these Addition polymerisation Copolymerisation Chain polymerisation None of these Addition polymerisation Copolymerisation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Neoprene is rendered non-inflammable, because of The presence of chlorine atoms in its monomer Its cross-linked structure The absence of chlorine atoms in its monomer Its linear chain structure The presence of chlorine atoms in its monomer Its cross-linked structure The absence of chlorine atoms in its monomer Its linear chain structure ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used For fibre making For film forming materials As plasticiser for PVC & nitrocellulose For surface coating of automobiles & air crafts For fibre making For film forming materials As plasticiser for PVC & nitrocellulose For surface coating of automobiles & air crafts ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is 1 kgf/cm² (gage) and 70°C 1000 kgf/cm² and 100°C 7 kgf/cm² and 700°C 7 kgf/cm² and 70 °C 1 kgf/cm² (gage) and 70°C 1000 kgf/cm² and 100°C 7 kgf/cm² and 700°C 7 kgf/cm² and 70 °C ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres. Polyvinyl acetate PVC Rayon Polythene Polyvinyl acetate PVC Rayon Polythene ANSWER DOWNLOAD EXAMIANS APP
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