Polymer Technology Questions

• Polystyrene is a light, transparent, thermoplastic material used for making
• A copolymer is formed by the combination of two or more monomer molecules
• Bristles of tooth brushes are made of
• Polystyrene is a __________ plastic at room temperature.
• Alkyd resin can not be used for making
• Valcunisation of rubber decreases its
• Plastic articles are normally produced by __________ moulding.
• Amino resins are used in paper treatment to improve its
• Vulcanisation of raw rubber makes it
• Alkyd resin e.g., glyptal resin formed by phthalic anhydride and glycerene is not used
• Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins.
• Polypropylene compared to polythene is
• Pick out the wrong statement.
• Pick out the wrong statement.