Polymer Technology Questions

• In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer?
• Starting material for the production of SBR is
• Which of the following polymers belong to the class of formaldehyde resin?
• Vinyl flooring is done using __________ sheets.
• Density of high density polythene is about __________ gm/c.c.
• Buna-S is a __________ material.
• The synthetic fibres produced from __________ are known as rayon.
• Out of all the elastomers, natural rubber has the longest elongation range & flexibility of the order of __________ percent.
• Which of the following is a copolymer?
• Buna-S is also known as
• Ion exchange resins are made of
• __________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate.
• Polymethyl methacrylate, which is an acrylic resin, is also called
• Perspex can be used as a substitute of glass. Its monomer is
• Low density polythene as compared to high density polythene is
• Which of the following is stretched into fibres?
• Pick out the correct statement.
• Viscosity of a polymer solution or melt
• __________ is an addition polymer
• Temperature and gage pressure maintained during the manufacture of cold SBR (styrene butadiene rubber) are