Polymer Technology Questions

• Dacron is a
• Styrene butadiene rubber (SBR) is
• Which of the following is not a natural fibre?
• Nylon-66 is a polyamide of
• Polymers are classified into four categories namely thermosetting, thermoplastic, elastomer and fibre depending upon their
• Thermosetting plastic materials
• Polycaprolactum is
• Plexiglass (also called lucite) because of its high optical transparency is used for making lenses. It is chemically
• Polyvinyl chloride (PVC)
• 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.
• Silicone is a/an
• Nylon-6 is a
• A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of
• Thermosetting materials
• Phenol formaldehyde
• Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature.
• Which of the following is the lowest cost plastic commercially available?
• Polymerisation of poly functional monomers produces polymers having
• Branched chain polymers compared to linear polymers have higher
• Polyurathane can not be used to make